NB/T 47022  法兰 C-T 650-4.0/20δ1=6

WN300-150 RF Sch4065

2 CT 650-4.020δ1=6

WN20B)-16rf-16rf,s=09bl50

WN250-150 RFs-Sch

47021 c-rf1000-0.6&ampampampampampa

3 CFM 600-0.2520δ0=80

WN50(B)-16 RF S=≥4um.ha9�Ν╪▒έΓυ├λέΑ�

WN 200-150 RFSCH10

wn80-150RF950-1.3/78-165

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