HG/T 20592  法兰 WN 80-63 RF S=10

WN80(A)-63 RF S=10

pl300(b)-6rf b=5165Fc-1.6

PL 400(B)-10 RF¬Âº10-220

LWN50-300 RF Sch80S H=198

WN 300-150 RF Sch40/data

WN 600-600RF5 wn Sch40=8ch46086

WN150-600 RF Sch40 A=

WN600-300 RF B=598

wn300-10 RFH=2â

WN 20-1500 RJ S=34.515RFL-150 RF Sch