HG/T 20592  法兰盖 BL 100-10 FFrfb)-10rf5Frv

BL100-10FFrfb)-10rf5Frv

SO125(B)-40RFC=34H

WN 32-300 RF S=88.7h4Sc

2 G 1000-4.020Оҙ1=10

WN25(B)-40 RF B=34

PL600-16RF

BL100-63 RF

WN 400(B)-63 RFn61000-

bl250b-2.5rf bl500-25rf0uot

SW 25(B)-25 RfSRFh40b)-100h0 c=2=4.RF0 It(b)-1501=æ—&&SF �rfR-