GB/T 12459  弯头 DN 300-Ⅱ-2090EL643.5669-15

DN 300-Ⅱ-20 90EL643.5669-15

47021 C- M800-1.06rH=93=4.5h

wn200-16rf

47023 FM1800-0.60-16/u8nF=8.8

BL80-16RF.3Sch40650 R/70�°ç�

DN25-PN2.5 PL FF I

SO150-40RFRF0-10yp/sta20-f176RF S2(HG/HG65 P=1/am00RF

BL 500-16 RF

PL125-10FF00(b)-16rF2

B WN 95