HG/T 20592  法兰 PJ/SE 300(B)-10 FF S=10

PJ/SE 300(B)-10 FF S=10

SO 600-150 RF

WN20-300RJ20-15FmSch431-

PL 5010-10 RF

WN150-900RJ

DN 50×32-Sch40S RC

BL40-25FM5500RFch40S-F-/

DN25-PN100 WN RJ Ⅱ S=4

PJ/SE 80(B)-10 RF S=3

WN 80-300 RF Sch160ⅡL RF Ⅱ� SO 200-150 RF S30408-1.605 rfn10fm040