HG/T 20592  法兰 PL 500-16 RF(B)-25 RFh

PL 500a-16 RF(B)-25 RFh

WN300-150rf Sch80ampa5 RJ

SO 450(B)-16 RF

3 G 1700-1.0 δ0=12

WN 150(B)-25 RF S=5

SO 200(B)-6 RF0-1.6/45

BL500-6RF

LWN50-300RF B=52 H=211

SO600A-10 RF HG/fch sc6am2S3

a wn1050-600 rf/sH120spbH1S=14-16 RF�0 RF S=2018l0 RFM/0RF