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JG-104 general electrician, electronics, electric power drag experimental training room equipment (with DC motor experiment) (four in one)
This equipment is based on the "General Electrician, Electronics, and Electric Drag Laboratory Complete Equipment", which adds DC motor adjustment links, DC experimental motors, etc., in addition to completing the entire experimental content of the former, it can complete the basic DC required by the syllabus Motor experiment. This equipment organically integrates electrical engineering, electrical engineering principles, electronic technology, electric drive control lines, and DC motor experiments, which greatly improves the management level, saves funds and management personnel, and reduces teachers' experimental preparations. This equipment is an ideal product for upgrading or existing laboratory equipment. It's equipped to make the school one step in place, is an important sign of higher levels, higher levels.
● The structure of the test bench:
( Teaching Equipment | Teaching Instruments )
1. Shell size of test bench: 1230 × 350 × 200mm
2.Three-phase insurance seat
3.Three-phase power input indicators
4. Main switch: power switch of the test bench with leakage and overload protection
5. Test button: test the leakage protection function of the leakage switch
6, power input instructions 1
7. Three power output indications (red, green, yellow)
8. AC voltmeter: indicates the output line voltage
9. Voltage transfer switch: used in conjunction with a voltmeter to monitor the size and symmetry of the output line voltage
10, 5 sockets: A unit three-phase four-wire and ground wire output
11. Ammeter: W-phase current output indication
12, four sockets: A unit three-phase four-wire power output
13. Two terminal blocks: AC low-voltage power output of unit B
14. Electric meter (2A): AC current indication of unit B
15. Knob: 3 ~ 24V voltage output selection of unit B
16. Switch: C unit dual DC stabilized power switch
17. Knob: C unit dual I channel steady current adjustment
18. Knob: C unit dual I channel voltage regulation adjustment
19, 2 sockets: C unit I DC stabilized output
20, insurance seat: C unit dual power supply insurance
21, 4 meters: dual voltage supply voltage, current indication
22. Wiring base: DC unit 5V stable too output

23. Electric meter: D unit current 0.5A output indication
24. Switch 1: Controls various low-voltage AC power and signal sources
25. Switch 2: Control the AC / DC voltage regulating power supply of the E unit
26. Electric meter: AC unit voltage output indication of unit E
27. 4 terminal blocks: AC and DC output of E unit
28. Knob: E unit 0 ~ 240V voltage adjustment
29. Socket: 220V output socket of G unit
30. Knob: Audio power amplifier volume adjustment
31. Two sockets: audio signal input
32. Button: switch for single pulse
33. 3 sockets: single pulse output port
34. Electric meter: Function generator sine wave output voltage indication
35. Knob: Sine wave output three-level attenuation adjustment
36. Knob: Fine adjustment of sine wave output amplitude
37. Wiring base: Sine wave output port
38. Knob: Rectangular wave output amplitude adjustment
39. Connection block: triangle wave output port
40. Knob: Fine adjustment of function signal generator frequency
41. Terminal block: rectangular wave output port
42. Knob: five-level coarse adjustment of the function signal generator
43. Electric meter: Function generator output frequency indication
44. Multimeter: 500 type
45. Experimental desktop size: 1600 × 700mm
46. Universal circuit board: Specification: 350 × 900mm, the component box can be randomly inserted and combined for experiment
47. Storage board: component box
● Main technical indicators of the test bench:
1. Input working power: three-phase four-wire 2. Output power and signal:

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Beijing Jinggong Science & Technology Equipment Co., Ltd., see details Related products connect electrical and electronic laboratory equipment
Inquiries 010-87966065 ......... 010-87917759


1. Unit A: three-phase four-wire
2. Unit B: AC 3, 6, 9, 12, 15, 18, 24V
3. Unit C: dual-channel constant-current regulated power supply (with overload and short-circuit protection functions), both output voltages are 0 ~ 30V, continuously adjusted by multi-turn potential, and the maximum output current is 2A.
4. Unit D: DC voltage regulation 5A, current 0.5A
5. Unit E: AC / DC voltage 0 ~ 240V continuously adjustable, current 2A
6. Unit F: 220V voltage output for external equipment
3. Single pulse source: Two sets of independent single pulse sources, each of which can output a pair of positive and negative pulses each time.
1. Frequency range:
5Hz—550KHz divided into five frequency bands
2. Frequency indication: Read directly from the Hz meter
3. Voltage output range: Sine wave: 5Hz-250KHz > 4.5V, 250KHz-550KHz > 3.5V
Three levels of attenuation: 0db, 20db, 40db have continuous fine-tuning rectangular waves: 5Hz-250KHz > 4.5V, 250KHz-550KHz > 3.5V,
Continuously adjustable triangle wave: 5Hz—550KHz > 1V
Five, audio power amplifier: The input audio voltage is not less than 10mV, the output power is not less than 1W, the volume is adjustable, there is a speaker inside, which is used to amplify the sound of the circuit, and can also be used as a signal tracking instrument.
6. Insulation resistance: > 5MΩ
Seven, leakage protection: Leakage operating current 30mV
● Complete equipment equipment content: (24 seats)
I. Student Experiment Bench:
On the basis of "general electrical and electronic laboratory equipment", increase the speed control link, Ia, If instruction link. Equipped with 12 student experiment tables, one with two seats, and overall dimensions: 1600 × 700 × 800mm. 12 student experiment benches. A universal circuit board (350 × 900mm) is arranged in the center of the experimental table, and an arbitrary circuit is inserted into the component box according to the experimental circuit to form an experimental circuit. The component box body is transparent and intuitive, and the internal components are clear at a glance. The component lid is printed with the component symbol. Each table is equipped with a rubber sheet to protect the universal circuit board and desktop. Below the table is a component storage cabinet for experimental components.
Second, the teacher's teaching platform: 1 teaching table, 1 experimental platform, respectively control the power of 12 student tables. The universal circuit board demonstration screen stands on the experimental table with a size of 1500 × 700mm for explaining the demonstration.
Equipment:
26 three-phase 180W motors, 13 DC motors 200W, 13 motor storage cabinets (by students' desks), 26 time relays, 26 thermal relays, 78 AC contactors, 156 AC and DC meters, 13 Only MF-500 multimeter, 39 indicators, 42 limit switches, 78 control buttons, 13 reverse switches, 26 transformers, 13 three-phase double-throw gates, 13 three-phase gates, 13 sets Wire stripper, needle-nose pliers, screwdriver and other tools, 13 sets of resistors, potentiometers, inductors, diodes, triodes, field effect tubes, integrated circuits, integrated bases, thyristors, logic level switches and logic required for experiments Level indicator, sensor device, etc. Component unit box (components are already installed in the unit box).
4. User-made equipment
1. Transistor millivolt meter 2. Power meter 3. Oscilloscope
● Experimental items:
◆ Electrician:
1. Use of electrical measuring instruments
2. Identification and detection of common components
3.Volt-ampere characteristics of linear and non-linear components
4.External characteristics of power supply
5.Measurement of potential value and voltage value
6.Expansion range of ammeter and voltmeter
7.Verification of Kirchhoff's law
8.Verify Lenz's Law
9.Verification of Superposition Principle and Reciprocity Theorem
10.Verification of Thevenin's Theorem and Norton's Theorem
11. Equivalent transformation of voltage source and current source
12. Research on the characteristics of controlled sources
13.First-order circuit experiment
14.Transition process of second-order circuit
15.Investigate the characteristics of LC components in DC and AC circuits
16.Conditions for the load to obtain maximum power
17.Measurement of AC circuit parameters
18. Characteristics of Sinusoidal AC Circuit RLC Components
19.RL and RC series circuit experiments
20. RLC series resonance circuit
21.The connection and power factor of the fluorescent lamp circuit are improved.
22.Star and delta connection of three-phase load
23.Three-phase circuit and power measurement
24. Research on RC frequency selective network
25. Two-port network research
26 、 Single-phase transformer experiment
27. Mutual inductance circuit experiment
28. Use and starting of three-phase asynchronous motor
29. Basic circuit of three-phase motor relay contact control
30. Three-phase motor Y- △ starting control experiment
31. Sequence control experiment of three-phase motor
32. Energy consumption braking control experiment of three-phase motor
Using the components of the above 32 experiments can also complete the following circuit experiments:
33. The simplest circuit
34. Selection of potentials and reference points in the circuit
35.Resistance in series
36.Resistance in parallel
37.Resistance
38.Resistance voltage divider circuit
39, Ohm's law of the whole circuit
40. Application and balance conditions of electric bridge
41.Node voltage method
42, loop voltage method
43. Branch current method
44, RCL parallel circuit
45, series circuit
46. Transformer structure and working principle
47. Kirchhoff's first law
63.The working principle of ohmmeter
64 、 Double ground switch two ground control
65. Observe the hysteresis loop with an oscilloscope
66. Ohm's law of magnetic circuit shows the resistance value of the filament under different voltages
67. Mutual inductance of two coils and the same name end
68. Mutual inductance coupling
69.Methods to improve power factor
70 、 Single-phase circuit power measurement
48. Kirchhoff's second law
49, fluorescent lamp circuit principle
50.Extend the range of the voltmeter
51.Extend the ammeter range
52 、 The transition process of RC circuit
53, RL transition process
54 、 Capacitor series circuit
55, capacitor parallel circuit
56.Charging and discharging of capacitors
57, the role of capacitors in AC and DC
58.Motion of the bar magnet in the coil
59. Capacitive hybrid
60.Pure resistance, inductance, capacitor circuit
61 、 Sequence of magnetic coupling coil
62. Inverse string of magnetic coupling coil
71 、 Recorder power circuit
72.Filter circuit
73. The relationship between resistance and temperature: measured by voltammetry
74. Three-phase asynchronous motor brake knife control forward rotation experiment
75.Control circuit with overload protection
76. Forward and reverse control circuit of button control
77, contactor control star-delta step-down start control circuit
◆ Electronic part:
1. Characteristics and detection of crystal diodes
2.Input and output characteristics of transistor
3.Low frequency small signal voltage amplifier
4. Directly coupled two-stage amplifier
5.RC coupled two-stage amplifier
6. The effect of negative feedback on amplifier performance
7.Transformer-coupled push-pull power amplifier
8. Complementary symmetrical push-pull power amplifier (OTL)
9.Single-phase half-wave rectification
10.Single-phase full-wave rectification
11.Single-phase bridge rectifier
12.Single-phase bridge rectifier filtering
13.Single-junction transistor characteristics
14.Single-junction transistor trigger circuit
15, simple test of thyristor and controllable rectifier circuit
16.Field-effect tube test
17.Series voltage regulator circuit
18. Research on differential amplifier circuit
19.Test of integrated operational amplifier parameters
20.Integrated op amp subtraction circuit
21.Integrated op amp addition circuit
22.Integrated op amp integration circuit
23.Integrated operational amplifier differential circuit
24, integrated op amp sine wave oscillator
25.Capacitive three-point oscillator
26.Inductive three-point oscillator
27.Integrated voltage regulator circuit
28. No steady state circuit (multivibrator)
29.Schmitt triggers
30.Integrated AND gate logic function test
31.Integrated NOT gate logic function test
32.Integrated OR gate logic function test
33.Integrated NAND logic function test
34.Test of CMOS gate circuit
35.RSA triggers
36.JK trigger
37, D trigger
38, 555 time base circuit application (square wave generator)
39, 21 decimal counter
40, twenty-one decimal 8421 decoder
41.Adder
42.Subtractor
43.Integrated NAND gates to form monostable triggers
44.Combination logic circuit
Using the above-mentioned 44 experimental components can also complete the following experimental content
4 5.P-N junction unidirectional conductivity
46 、 Measurement circuit of triode ICBO
47 、 Measurement circuit of triode ICEO
48. Triode current amplification
49 、 VA characteristics of triode
50.Single-stage small signal voltage amplification with load
51.Voltage negative feedback bias circuit
52.Voltage-divided current negative feedback bias circuit
53. Use a thermistor to stabilize the input of the operating point
54. Use a diode to stabilize the operating point
55. Analyzing the influence of Ce on low frequency characteristics
56 、 Common base amplification experiment circuit
69. Class B power amplifier circuit
70.Negative feedback of series current
71.Series voltage negative feedback circuit
72. Parallel voltage negative feedback circuit
73. Parallel current negative feedback circuit
74.Negative feedback in two-stage amplifier circuit
75.Emitter output circuit
76, bootstrap emitter output circuit
77. Attenuate high frequency voltage with capacitor
78. Eliminate self-excited oscillation with negative feedback
79. Use the base current of the triode to achieve temperature compensation for Los
80. Measures to make the complementary tube work in Class A and B to increase output current
81.The circuit principle of measuring temperature using the temperature coefficient of PN junction
82. Common base common emission amplifier circuit
83 、 Transistor switch function
84, level photoelectric control
85.Simple temperature control circuit
86. Analog light-controlled simple street lamp automatic switch circuit
87, RC phase shift oscillator
88 、 Double T frequency selection network
89. Transformer feedback oscillation circuit
90.Feedback oscillating circuit of field effect tube transformer
91.Anti-theft alarm circuit
92. Series crystal oscillation circuit
93. Oscillator composed of dual T frequency selection network
94. Complementary audio oscillator
95.Alarm sounder
96.Music doorbell circuit
97.Electronic alarm circuit
98. Basic form of differential amplifier circuit
99.Electronic doorbell circuit
100. Quasi-complementary symmetrical circuit
101 、 Three-tube OTL complementary symmetrical circuit
102. Long tail differential amplifier circuit
103.Differential single-ended output
104.Single-ended input and dual output
105, single-ended input single-ended output
106. Dual power supply long tail differential amplifier circuit
107. Measures of experimental circuit constants of differential amplifiers
108. Differential amplifier circuit with constant current source
109. Temperature drift analysis of single-ended output differential amplifier circuit
110.Flasher circuit
111, the basic connection of operational amplifier
112. The current differential op amp is used as an AC proportional amplifier
157.Using indirect methods to get approximate differential
158.Basic logarithmic operation circuit
159. Use the logarithmic characteristics of the triode to form a logarithmic operation circuit
160, the basic circuit of anti-log amplification
161, Vo is proportional to the VxVy circuit
162. Simple zero-crossing comparison circuit
163. Comparison circuit with stagnation characteristics
164 、 Double limit comparison circuit
165. Dual-limit three-state comparison circuit
166. Use diode as upper limit detection amplitude selection circuit
167. Lower limit amplitude detection selection circuit
168. Basic sampling protection circuit
169. Low-pass filter circuit for RC passive network
170, the filter circuit is connected to the non-inverting input of the component
171. The filter circuit is connected to the inverting input of the component
172. Simple second-order RC filter circuit
173. Typical RC active filter circuit
174. Basic bandpass filter circuit
175, typical band-pass filter circuit
176. Two-stage active filter circuit
177. Multi-feedback secondary active filter circuit
178. Typical second-order high-pass active filter circuit
179. Bandstop filter circuit composed of double T network
180.Output limiting inverter
181, Practical Difference Operational Amplifiers
182.Rectangular wave oscillation circuit
183. Resistor-capacitor phase-shift trigger circuit
184 、 Electric mattress temperature control device
185. Adjustable rectangular wave generator
186.Simple sawtooth wave generator
187.Sawtooth wave generator with adjustable amplitude and frequency
188 、 Single-phase bridge rectifier common drawing circuit
189. Maximum reverse peak voltage of full wave rectifier circuit
190, capacitor filter circuit
191, Capacitive filter with resistive load
192. Full-wave rectification capacitor filter circuit
193 、 RC filter circuit
194. Multi-segment RC filter circuit
195. Basic LC filter circuit
196, T filter circuit
197 、 Double voltage rectifier circuit
198. Triple voltage rectifier circuit
199 、 Basic voltage regulator tube voltage regulator circuit
200.Basic pass regulator circuit
57.Common collector amplification experiment circuit
58, common source basic amplifier circuit
59. Self-sufficient bias amplifier circuit of field effect tube
60.Field-effect tube voltage-dividing self-biasing circuit
61, MOSFET common drain circuit
62.Gate circuit of FET
63.Single tube resistance capacitor amplifier circuit
64. Basic DC amplifier circuit
65. Use a resistor to increase the emitter potential of the rear stage
66. Use a voltage regulator to increase the emitter potential of the rear stage
67 、 Transformer coupling amplifier circuit
68. Class A power amplifier circuit
113, Vos simple measurement method
114, Ios simple measurement method
115, Aod's simple measurement method
116. Simple test of common mode rejection ratio Cmrr
117. Simple test of maximum common mode input voltage Uicm
118.Uopp's simple test
119 、 Measurement method of SR
120. Basic in-phase amplification method
121. LC oscillator composed of op amps
122. Electric cup temperature control circuit
123. Leading to zero input zero adjustment
124. Leading to the same-side input zero adjustment measures
125.In order to prevent the electric value from being too large
126. Battery monitoring circuit
127. Use T-type network to increase equivalent feedback resistance
128. Amplifier circuit composed of field effect transistor and triode
129. Measures for Correction of Capacitive Load
130.Inverting input protection measures
131. In-phase input protection measures
132.Using a voltage regulator to protect the device
133.Protection of power polarity misconnection
134. Instantaneous overvoltage protection at power on
135.Diode detection circuit
136, PNP-NPN direct coupling amplifier circuit
137.Dual diode limiter
138. Basic circuit of inverting op amp
139. Variable scaling
140.Basic circuit of non-inverting op amp
141. Voltage / current conversion circuit
142, current / voltage conversion circuit
143.Voltage follower
144. Basic circuit of differential amplifier
145. Differential input of operational amplifier
146. Inverting input sum operation
147, non-inverting input sum operation
148.Double-ended input summing circuit
149, basic integration circuit
150 、 Integral operation circuit when EG test filters leakage resistance
151.Improving integration time
152.Fast integration circuit
153.Analog first-order differential equation circuit
154. Analog second-order differential equation circuit
155.Basic differential circuit
156 、 Practical differential circuit
201. Its voltage stabilization circuit with amplification link
202, regulating tube current stabilization circuit
203, electronic filter
204, series voltage regulator circuit
205.Parallel voltage regulator circuit
206, electronic hypnosis
207. Three-terminal integrated voltage regulator circuit
208. Integrated voltage regulator circuit with adjustable positive power output
209 、 Single-phase full-wave controllable rectification
210, silicon voltage regulator circuit
211.Single-phase half-wave controllable rectification
212 、 Single-phase bridge half-controlled rectifier
213, Principle of silicon rectifier for charging
214. The effect of inductive load on thyristors
215. Thyristor Triggered Continuity Test
216, Back-EMF load thyristor circuit 216, Back-EMF load thyristor circuit
217, simple electronic voltage regulation circuit
218, test the partial pressure ratio of a single junction pipe
219 、 Single junction tube oscillation circuit
220 、 Single junction tube trigger application circuit
221 、 Diode AND gate circuit
222 、 Triode OR gate circuit
223 And Logical Image
224, or logical image
Chapter 225: Non-Logical Image
226 、 Triode “not” gate
227 、 Triode NAND Gate
228 、 Triode NOR Gate
229 Triode Bistable Circuit
230 、 Triode monostable circuit
231 、 Triode multi-resonance circuit
232, Set trigger circuit
233.Emitter coupling bistable
234. Symmetric Multivibrator
235.Ring multivibrator
236 、 Differential type monostable circuit
237.Integrated Schmidt circuit
238.Rectangular wave generator
239 、 Single pulse circuit
240.Continuous pulse generator
◆ Power drag section:
1.Blade knife switch forward control circuit
3.Forward rotation control circuit with self-locking
5, reverse switch control forward and reverse control circuit
7, button contactor compound interlock control circuit
9, automatic round trip control circuit
11.Time relay control series resistance step-down control circuit
13, contactor control Y / △ step-down start
15, QX3-13 type Y / △ automatic start control circuit
17.Full-wave rectification energy-consumption braking control circuit
19.Manual Buck Start
21.Electric hoist electrical control circuit
23.Control circuit interlock control circuit
25.DC motor start
27.DC motor reverse
2. Contactor jog forward control circuit
4.Forward control circuit with overload protection
6.Forward and reverse control circuit of contactor interlock
8.Forward and reverse control circuit of button interlock
10.Contactor controls series resistance step-down starting circuit
12.Manual Y / △ step-down start
14.Time relay controls Y / △ step-down start
16.Half-wave rectified energy consumption braking control circuit
18.C620 lathe electrical control circuit
20.Single-phase running reverse brake control circuit
22.C6163 lathe electrical control circuit
24. Interlock control circuit of main circuit
26, speed regulation of DC motor
28. DC motor braking experiment
● Equipment configuration list: (Each experimental table configuration)
◆ Electric drag part:
Serial number name Model specifications unit Quantity Note
1 Fuse 2A only 6 Component box
2 AC contactor CJ10-10A 380V Each 6
3 Indicator light XD-5 Each 3
4 resistance RX-510Ω / 300W Each 3
5 Toggle switch KN1 × 2 Each 3
6 Limit switch LX19-001 Each 4
7 Button red Each 2
8 Button green Each 4
9 Inverted switch KO-380V 10A Each 1
10 Three-phase brake knife 380V 15A Each 1
12 Three-phase double-throw brake knife 380V 15A Each 1
13 thermal relay
JRO-20 / 3 Each 2
14 Time Relay JS7-1A 330V Each 2
15 transformer BK25W380V / 6.3V + 36V Each 1
16 wire Copper core wire 1.33mm Meter Several
17 Needle-nose pliers Put 2 One cross, size
18 screwdriver Put 1
19 multimeter MF-500 station 2
20 electric motor △ 380V Put 1
twenty one DC motor
220V station 1
◆ Tools:
Serial number name Model specifications unit Quantity Note
1 multimeter MF500 only 1
2 Needle-nose pliers Put 1
3 screwdriver 3
4 Wire stripper 1
5 Connecting line Meter Several
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