GB/T 9124.1  法兰 DN25-PN320 WN M Ⅱ S=8 A=34016 k=10/0 20ampamp6 RF RF

DN25-PN320 WN M Ⅱ S=8 A=34016 k=10/0 20ampamp6 RF RF

wn100(b)-40rf sh40s0421=130

SO 25(B)-16RF=59012c400Sch60fRB)- LGs=3./T20592

PL50(B)-16RF=12 s=mpampampampamp

WN 40-900 RF S=3.62b)-10rB)-16r

rj350-10 RF��30=563

BL25-1500rJh80S RF S

WN80(B)-