HG/T 20592  法兰 IF 1800-40 T 61/0m SS=1⬠wnF Sch

IF 1800-40 T 61/0m SS=1⬠wnF Sch

WN 80-16 FMSch60 hfF400-4.0 S=6/u0080/u00e54.6/67-133f d3RFS01

WN80B-25RF S/u00GRSCH4036R

TPB-4-10-

BL 1 1/4"-150 RF

NB/@A 100010 RF S=≥RFf1=)

PL 300(B)-6 RF

PL200-16 RF�1.6 �-16 RF2=4F-6709d100-

WN150B-