HG/T 20592  法兰 PL 100(B)-10 FF D=449 K= BB=309 L/

PL100(B)-10 fF D=449 K= BB=309 L/

WN40-25 Gum.htm)-25fm4.0/69plD=345 B=150 r

BL 450(B)-16 RF B=460

WN32(B)-63 M HG/

WN 250-150 RF05RFRF

wn150-16 rf sch10sff50100S45R6CH8 C=456 R B=61.3179R/61J5116f30-120m

SO 32(B)-16 RF-600rr�@47023 RF1

wn25-300rf