久久久久久久极品内射,女厕厕露P撒尿,国产老妇伦国产熟女老妇视频,欧美人和黑人牲交网站上线,帅男勃起全过程自慰

Forged Steel Gate Valves

Column:Technical article Time:2023-11-17
655704d887df0.jpg
Product model: Z41H/Y
Nominal diameter: NPS1/2"~1(1/2)", DN15~DN50

655704d887df0.jpg

[Adaptive condition]
       Forged steel gate valve applies to ANSI, Class 150~2500, operating temperature <600℃ of petroleum, chemical, thermal power plants and other working conditions on the pipeline, cut off or switch on the pipeline medium.