HG/T 20592  法兰盖 BL 500-16 RFS2F�B@uo025S5 RJF1@bl1=10/2rf5S5 RJF1@bl1=10/2rf-1WSrf0.5 �

BL500-16RFS2F�B@uo025S5 RJF1@bl1=10/2rf5S5 RJF1@bl1=10/2rf-1WSrf0.5 �

PL100A-16RF B SF .el45

47023M1200-16RF

wn50B-16rf4 45EL100

WN65-16 RFMFM8�B@uo025S5 RJF1@bl1=10/2rf-1WSrf0.5 �

bl100-63 RF09 WN20-

wn50(b)-40rfä»

so 65-16 RF s=3F

WN50-16