HG/T 20592  法兰盖 BL 500-16 RF.6schRFS80m80s12001å½ãF.

BL500)-16RF.6schRFS80m80s12001å½ãF.

SO 25-150 RFa)-1)-25

WN50(B)-63 MRF S=3517

WN 25(B)-40 M20 K=146 AA=9010400F S=00F-2F

wn 25-150 RF-vF0rf0.38-2.

LWN25-150 RF B=27 H=208

wn200b-63g0-60=6ch40S0-300 rfmpquotych

WN250-10RF07=6s4/6.5tffsch80sFF=3.1