一个人看的WWW片免费高清中文,国产精品免费视频,老太bbwwbbww高潮,国语自产少妇精品视频

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

Products Name:Type 169 mechanical seal

Products Details:External single ended multi spring polytetrafluoroethylene corrugated pipe structure. Both dynamic and static rings are made of corrosion resistant cemented carbide or silicon carbide (SiC)

Operating parameters:
Sealing chamber pressure: 0.5Mpa
Sealing chamber temperature: -10 ~ 150 DEG C
Linear velocity:≤3000r/min
Medium: crystalline alkali salt solution and other corrosive substance