欧美黑肥妇野外bbw,亚洲精品无码AⅤ片桃花岛,男女啪啪免费观看无遮挡,亚洲综合成人婷婷五月

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

Products Name:Model SZ208 mechanical seal

Products Details:Single ended / balanced / arbitrary rotation / rubber bellows, SZ208 is made up of two SZ108 back to back, allowing a combination of end face using a variety of materials, widely used in submersible pumps

Operating parameters:
Seal chamber pressure: 0 ~ 0.8Mpa, the seal cavity temperature: -20 to 150 DEG C, line speed: less than 3000r/min, medium: water, sewage, oil and weak corrosive liquid.