国产丝袜一区二区三区在线观看_免费一级毛片在线播放视频黄下载_大黑吊超碰在线欧美_国产91 丝袜在线观看_国产成人亚洲精品大帝_国产成人精品一区二区秒拍视频_少妇高潮惨叫久久_人妻少妇推油按摩呻吟_91精品网址免费观看_在线观看无码网站

Stainless steel piston rod


● Product introduction
The surface of the stainless steel piston rod is specially ground and hard chrome electroplating technology, and then mirror polished. It has the characteristics of abrasion resistance and corrosion resistance. It is suitable for various cylinders, oil cylinders, piston rods, packaging, woodworking, textiles, printing and dyeing machinery. , Die-casting machines, injection molding machines, and other mechanical guide rods, ejector rods, etc.

● Technical parameter
Material: Stainless steel
Outer diameter tolerance: f7-f8 (other tolerances can be customized)
Surface roughness: Ra0.2-0.4
Hard chrome thickness: 0.015-0.025mm
Surface hardness: HV700-11