weir type handwheel??diaphragm valve for sw service? ?? ?(怎么翻译???sw 是什么?sewage water???)
dn 50
face to face rubber line : 220? ?(中文怎么表述?)
flange dia :155
pitch: 120??(什么意思)
m 16 x 4? ? (什么意思)
flange type, cast iron
neoprene rubbe, handwheel operated
impa code: 752301
一直在小设备外贸,突然来个询价,不太明白,谢谢各位!!![收起]