Apply to reciprocating motion of hydraulic cylinderpistonrod sealed device can also be used to cover the static flange seal.
适用于液压缸活塞杆往复运动用密封装置，也可用于法兰端盖的静密封装置。
2
The cylinderpistonrod is made of carbon steel and is provided with a surface coating to improve the running characteristics and to prevent corrosion.
该汽缸活塞杆由碳钢制成，外著一层防护涂层，以增强其运转性能并使其具有防腐功能。
3
The use of hydraulic cylinder in hydraulic elevator, the part usually has five parts: piston and pistonrod, cylinder and cylinder head, buffer device, sealing device and exhaust device.