ASME B16.47  法兰 WN 40"-600 RF Sch40S

WN 40"-600 RF Sch40S

BL 20-16 RF

3 B3-Impa.4FF5 R

BI 900-19

IF500-16 FF

WN48B-40M500

SO80-150 FF ASME

SO32-16 RF-1.1.0 δs=6 RFF(A)6/@42

SO 50(B)-25 G

WN200-900 RF SCH40SG/T20592-200 RЋ9n0h40Rf s=3.3(b)-40rfb1500-s/@BII50 RF/S/rt150 RFrfB0 RRFR