久草成人/91福利在线视频/精品国产不卡在线电影/日本久久不射 ,国产精品视频一区国模私拍丝袜_av日韩国产一区二区三区_xx视频在线永久免

Menu

GB Floating Ball Valve

GB

Product Profile:

Nominal pressure: PN100
Strength test: 15 MPa
Sealing test: 11MPa
Gas seal test: 0.6Mpa
Medium used: water, steam and oil

國(guó)標(biāo)浮動(dòng)球閥0005.jpg