HG/T 20592  法兰盖 BL 350-10 RF6m0ch80

bl350- 10rf6m0ch80

WN 3"-150 RF Sch40S 5 f=1.6 O=190.5

SO200(B)-16 RF550rb

1 RF 600-0.6 δs=8

WN25-300 RF Sch40

DN500-PN10 PL RF Ⅱ

LWN25-150 RF Sch40

1 RF 600-1.0 δs=8

WN 3"-150 RF Sch40S S=3.95 f=1.6

PL150-16RFSCH80)8B/ampa/@RF0--RF/u00