Cage sealing gasket load is applied very close to the body to bonnet seal and nearly in line with the resisting gasket.

 
  • 籠式附載密封墊片與閥體和閥蓋要連接緊密,并且與抗密封墊片保持同一直線(xiàn)。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan