GB/T 12459  同心异径管 DN 200×15-Ⅱ-4.5RC

DN 200×15-Ⅱ-4.5 RC

WN200B- 16RF0I85-290/0Srfpam

LWN40-150 RFMn-25N1/SO 80(A)bf-4.0F

WN40(A)-40 RF S=5s=18 S= H

WN200(B)-25MFMF0RF0-1.6J�вӮ¬ВқMm2=òÀ

47023 FM300-2.5 RF S=6-RF 20 p

WN80B-16RFrj4033/FF S=516-20ff

1 FF 1200-0.6 δs=10

bl600-3