HG/T 20592  法兰盖 BL 500-25 RF)-63 RF S=3.35RFF.5 RJ-5FRJsRF0 RF Sch40RF6943RF@AFF@PF6pam

BL500-25 RF)-63 RF S=3.35RFF.5 RJ-5FRJsRF0 RF Sch40RF6943RF@AFF@PF6pam

1 RF 600-0.6 δs=5

BL200-150 FFs

LJ 1/2"-150 RF Sch80S603II00F

BL 3560-10 RFRF Sch408FF0 RF Sc

BI 2806

WN80(B)-16 RF41418200(B)-10145F0R

bl500-2.5 ffⅡ S=3F0H0ampampa

PL 25-