The sliding layer of glass fibre reinforced plastic containing PTFE is injection moulded in situ inside the housing washer.

 
  • 含PTFE玻璃纖維增強塑料的滑動(dòng)層是在軸承座圈內注射成型。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan