HG/T 20592  法兰盖 BL 700-10 RF16 RF S==9hL50(B)-16

BL700-10RF16 RF S==9hL50(B)-16

WN 500(B)-16 RF S=16

BL 20"-150 RF-F S=12 S=30 RF6rf

wn125-300rf 203

BL25-25RFR3/. S0-1h100rf60e130 C=48

A WN900-150 RF S

2 T 900-1.620δ1=180-1

WN 50-150 RFF RFRF Sch402.5f)-s=56 Rt16mhRF- b=431/h=4.1Rf6-600r

BII3