成人一区二区免费视频,中文字幕爆乳julia女教师,两性色午夜视频免费播放,99久热re在线精品99 6热视频

3
Products

Coating equipment for pipe inner wall PECVD

The inner wall coating of pipes with a length of at least 12m can be made
The inner diameter of the pipe can be selected from 50mm~300mm
Coating options:
DLC coating, Si-based DLC coating, Si-C-N coating Coating properties: Super lubricating coating, super hard coating, impact resistant coating, wear resistant coating