HG/T 20592  法兰盖 BL 10-100 FMsc9mpamS=4

BL10-100FMsc9mpamS=4

wn50-150 rf sch805MMr

WN 800(B)-16 RF S=10

PL 500(A)-2.5 RF

5 M 1000-1.6 δ0=8

WN250-300 RF S=CH40 ه�

PL 500(B)-6 FFFF.0 �

WN 500-16 RF

SO 65-150 RFF Scb0 h=12

BL 20-150 RF�ŽÂ´1=10 Sch80S0S3fm s�ҜТ0SR00 RF B=.50fm6(JFR