亚洲色偷偷综合亚洲av伊人,亚洲av色香蕉一区二区蜜桃小说,亚洲欧洲成人精品av97,亚洲国产精品一区第二页,亚洲高清专区日韩精品

Low-temperature

Low-temperature gate valve

Size:NPS1/2~NPS64

Class:CL150~CL2500

Design:API602,API600,BS6364

Connection Ends:NPT,SW,RF,RTJ,BW

Main Materials:Carbon steel, alloy steel, stainless steel

Medium:Ethylene,  propylene,  LNG, low temperature medium