HG/T 20592  法兰 PL 450-16 RF RF=3

PL450A)-16RF RF=3

1 RF 500-0.6i10â…¡RSฟฝ5 RJ ScF/d

WN 32(B)-16 RF S=3

SO 150(B)-16 RF b=3

SO100-150RF B=95 L=19

WN800(B)-300 RF

PL 700(B)-6 RF

2 RF 400-0.2520rf900

WN 150-150 RF Sch120JF/

WN80B-16RF-160 RF.0@H@0SO@470c@/H450 RF50 bRF070b1b10-