Supply manufacturer direct selling self-discharging car sealing system

Middle top car (2 oil cylinder) single cylinder; Include: unit one, box 2, big arm 4, small arm 4, seat 4, chain 2 root. Oil cylinder 2, tubing 2, pull rod 1, the electric bottle line 1 long 1 short, the control line 1, the joint page 10, the gear shaft 2, the pin shaft 2. Top car (4 oil cylinder) double cylinder; Include: unit one, box 2, big arm 4, small arm 4, seat 4, chain 2 root. Four oil cylinders, six tubing, one for the electric bottle, one for each one, one for the control line, ten for the line, two for the shaft, two for the shaft, and one for the shaft.