HG/T 20592  法兰盖 BL 500-6 RF0/50 RF S=4.55uot

BL 500-6 RF0/50 RF S=4.55uot

DN200-PN10 WN RF Ⅱ S=12.7

PL 80(B)-6 FF D=170 B=100 L

bl25-10 rfF00-10-16RF=120 FF@R RF=12 RFFM

DN350-PN10 WN RF Ⅱ S=9.5

SO 100(B)-16 RFF0ch120f6RF=120 FF@R RF=12 RFFM

PL40-16 RF-1/H4B)-16Rb=160

SO 2 1/2"-150 RF