HG/T 20592  法兰盖 BL 500(B)-40 RF S41

bl500(B)-40RF S41

A WN 900-150 RF S=16

SW15-300 RF B1=13

pl50-25RF

WN 200(A)-10 RF S=8m1Mfs2@

BL 1/2"-300 RF

wn50-300 rf t+5.65

A WN 700-150 RF S=20

WN 0(B)-16 RFA50F

WN 700-150 RF S=200)&=&mpam-10RF46-12545ffT2059F-B=9hg00RFf(b)F40-mp=�