免费看的黄色电影-免费看人与拘做受A片-风间由美一区二区三区-huangpian国产-女自慰 无遮挡免费看-久热中文字幕无码视频-免费A片免费看-天天激情小说-777米奇色888狠狠俺去啦-苗族做爰全过程A片,一本道狠狠干,一级黄色片视频,狠狠干夜夜操

Language version:中文版 | English | ??? ??
Home/
Products

Products Name:Model ST70 mechanical seal

Products Details:

Operating parameters:
Stress:0~1.6Mpa;Temperature:-20℃~180℃;Rotational speed:≤20m/s;Medium: oil, water, alkali, organic solvent, etc., dynamic, stationary ring materials: graphite, silicon carbide, tungsten carbide and so on.