HG/T 20592  法兰 PL 350(B)-10 RF5FM2ud=1F RF SCH8916 RF174RF-Fmpa0sï0S0&@��@RF@4 Rch4@4@F SRF

Pl350b-10rf5FM2ud=1F RF SCH8916 RF174RF-Fmpa0sï0S0&@��@RF@4 Rch4@4@F SRF

BL15-63RF25 C=1FM287a.5

DN15-PN63 BL RF

bii 5568

BI 369

WN 200(B)-25 RF S=12

SO 150-150 RF

SO 3/4"-300 RF

WN450-25 T

47065.3 B1263sc150 RF Sch1281)-16RFF8rf50 RFS5 RJ2