seal cylinder

Engine crankshaft front, rear oil seal on the sealing function of crankshaft rotation, which guarantees good lubrication of the engine cylinder body, reduce friction power loss.

发动机依靠曲轴前、后油封实现对曲轴旋转运动的密封功能，保证了发动机缸体内有良好的润滑，减低摩擦产生的功率损耗。

Hydraulic cylinder piston seal for the L-cups, the sealing performance and durability.

液压缸的活塞密封件为L型 皮碗, 其密封机能好,经久耐用.

Bolted cover plate to protect seal and cylinder from the ingress of debris.

上盖板可防止杂物进入缸筒损坏密封.

Loosen the valve outlet seal slowly when preparing to connect a cylinder.

准备连接钢瓶时,慢慢地松开阀门排气口密封.

The seal between piston and hydraulic cylinder used development machines , structure forms and operations are introduced.

介绍了掘进机液压缸与活塞处的密封结构形式以及使用.