HG/T 20592  法兰盖 BL 200-10 RF

BL200-10rf

BI 700

PL 25(B)-16 RF

SW 20-150 RF

3 FM 600-2.5 δ0=8

PL 500(B)-16 FF f1=3 B=524 b=5

PL 300(B)-16 RF

WN65-600 RF B=64

DN25-PN16 PL RF Ⅱ

BL50-150 RF L-300 RF Sch10S40SRFF07.5 RJ RFF�450-0.600�����Sch40S)mD3.50Sc4F-RJA CFF7.52 G@AFF Sc