GB/T 12459  弯头 DN 80-Ⅱ-490EL RF S=6 b=2Ã

DN 80-Ⅱ-4 90EL RF S=6 b=2Ã

PL 200-10 RF f1=

PL65(b)-16RFampa6

bl250(b)-100m/=h

PL125(A)-16 RF RjB/J S R

DN 800-Sch10S 45EL

PL65-16 RF D=175 d

BL200-100rfSch80

PL250-25RF0M RFfF/mlB)- Sch5sF S=1.2-2009п©б╘п╠Б∙≤п©Б∙═п�

BL 250-