HG/T 20592  法兰 LWN 25(B)-16 RFB=27 H=170155B=27 H=151Sch80.6S00 RF S

LWN25(B)-16RFB=27 H=170155B=27 H=151Sch80.6S00 RF S

BL600(A)-10RFrS

pl100(b)-16 rf d=880 n=24 l=30 c=32 f1=3 b=4 b1=800 k=920 d=975

47065.3 B2

1 FF 300-1.0 δs=6

NB/T47021M900-1.0

SO 125-150 RFRF f

SO125(B)-10FFso1100-0.

SO15(B)-16 RF 10 f1=3 n

WN 45