亚洲 国产 欧美 日韩 另类 综合_大学生一级毛片在线播放_99精品桃花视频在线观看_国产在线观看 91_岛国无码中文字幕_免费看的黄色网站孕妇_欲求不满中文字幕_惠民福利日韩精品无码专区免费播放_日本A√亚洲国产尤物_极品呦女专区资源

Location：PRODUCTS >> Butterfly valve >> Anti-sulfur hard sealing butterfly valve
Anti-sulfur hard sealing butterfly valve
Nominal diameter: DN mm
Nominal pressure: PN MPa
Main material:
Drive: gas transmission, electric transmission
Design criteria: GB / T12238-1989 JB / T8692-1998
Flange size: GB / T9115.1-2000
Structure length h: GB / T12221-1989
Pressure test: GB / T13927-1992; JB / T9092-1999
Nominal diameter: DN mm
Nominal pressure: PN MPa
Main material:
Drive: gas transmission, electric transmission
Design criteria: GB / T12238-1989 JB / T8692-1998
Flange size: GB / T9115.1-2000
Structure length h: GB / T12221-1989
Pressure test: GB / T13927-1992; JB / T9092-1999
The next：Pneumatic three eccentric hard sealing butterfly valve
The previous：Electric three eccentric hard sealing butterfly valve
+86-21-69755272
qrCode