法兰 BL 25-25 RF16.1rf6500-0.6440(B.0hm2.5F-10mp0-

bl25-25rf16.1rf6500-0.6440(B.0hm2.5F-10mp0-

HG/T20615 LWN25-150RFRF16 RF16 RFR

WN40-300G D=145 A=4

JWN 250×300-300 G

WN80-150 RF Sch40 S=3.0 A

PL300-16RF AA=275.5 C=26 n=12 b=0(b)-10rf055

BL 50(B)-16 RF)-25 RF=61.6FSRF H=75F0.6p0-RF s=8b=400-

1 FM