HG/T 20592  法兰盖 BL 400-10 FFl250(b)

BL400-10ffl250(b)

WN700(B)-16RF S=≥101.0 BL0R

axa-3 S00=rfF RF 304.30.6/100-210

SO500(B)-16RF=45-101200--150 rf b=47,h31Jt-10

LF/SE 150-150 FF B

WN 80(B)-40 fM0RFSch40S0FELEm6 R

WN50-63MF8570GRa SF Sch40S Sch80

BL 200(B)-160 RFS=3 f2=333-1RFRF

SO35