HG/T 20592  法兰 WN 500(B)-25 FM S=26

WN500(B)-25 FM S=26

BL 65-16 RF HFR1f0-H1CH80 RF(Bn( RF

WN 8"-300 RF Sch10S S=/b)40blp25-4000

WN50-150 RF Sch40 S=3 A=600bc5 m2M S=675

SO 300-150 RF105=2K=pa

2 RF 2000-0.6 δ4

PL 15-63 RJ0-1SF=245 RF d5ch �otHGpampa00-4-40RFm-36/ch40rfD=1

WN 4