HG/T 20592  法兰 WN 450-25 RF-п╟п÷п╒п┴

WN450-25RF-п╟п÷п╒п┴

PL 200(A)-2.5 RF�³/FF b=1F/35h595 S16S=6110 RF

WN200(B)-40RFmpquotHG2

WN 50(B)-25 RF S=3

法兰 LWN50-150 RF B=52 H=199

LWN 500-1500 RF Sch40RF S

WN100B-40 MF150 RF5 RF S=

AXC-9-50-20 S=220.6FhtRF0/foBN63

WN25(B)