HG/T 20592  法兰盖 BL 500(B)-6 M rfB)-16 RF80

bl500(b)-6 m rfB)-16 RF80

SO 14"-150 RF

DN50-PN10 PL RF Ⅱ

NB/T47023 M1200-1.6 H=150

BL RF 20K 150A1.5RJ5S=4

SO150-150RF

wn100(b)-16 rf n=105 b=89

DN 500-85 90EL

lwn150-900rf H=393

JISBLFF10K500A0pl5 S900A220C=�)900 rfCH2/u80800/-0-022-2652FF G