亚洲一区A∨无码少妇电影,国产精品∧v在线观看,久久久精品2019中文字幕,国产在线一二三区,久久久无码精品亚洲日韩按

Language: Chinese line English

centrifugal fan

  • 4-73-22 impeller
4-73-22 impeller

4-73-22 impeller

The corrosive wear of the fan impeller is mainly caused by corrosive gas and corrosive stress in the medium. Different types of corrosion due to different transport medium. In order to prevent corrosion and corrosion wear of the impeller, usually adopt the following measures: selection of corrosion resistance strong stainless steel impeller material; in the impeller surface coating or spray coating and improve the surface quality of the impeller in order to solve the problem of corrosion and wear.

Scan the qr codeClose
the qr code