Refractory Lined Gate Valve 是什么
Refractory Lined Gate Valve 是什么
GATE VALVE WITH BODY BLEED 中文是什么?
FC API 6A gate valve Body,中文是什么?
non-rising spindle gate valve是什么阀门啊!
Ductile Gate Valve BS 5163
BS 5163 Gate Valve and BS 5153 Swing Check Valve Gate Valve
Parallel expending gate valve 以及 expending gate&segment
through valve是什么阀?
GATE VALVE EURO反译成中文是什么意思啊~
Gate Valve,Bolted Bonnet- Bolted Gland,OS & Y,Carbon Steel,.
full bore gate valve 是个什么阀门?full bore
valve