刮油

• Reciprocating piston compressor metal rectangle packing . part6 : technical specification for sealing and wiper rings
  往复活塞压缩机.金属平面填料.第6部分:密封圈和刮油圈技术条件
• Fluid power systems and components - cylinder - rod wiper - ring housings in reciprocating applications - dimensions and tolerances
  流体传动系统和元件.缸筒.往复用活塞杆刮油涨圈.尺寸和公差