HG/T 20592  法兰 PL 32(B)-2.5 FF SCHF Sc0ch92/16 R

PL32(B)-2.5 FF SCHF Sc0ch92/16 R

bl500(b)-6fm/

a 590C.77

bl25-300 rf l=19

LWN 150-150 RF Sch40 RF Sch10S

3 CRF 300-1.620δ0=8 RF D=345 K=2

3 FF 1700-1.06r86/Fempam40J-1RFc=1600 RF Sch th

WN25B-40MSb-80502.5/1

SO 40-150 FF SCH2/8o2.5FF.6/80-144