HG/T 20592  法兰 PL 600-16 RF0=10=100=3 c=2683=3)-16 RRF.0FS

PL600(A)-16RF0=10=100=3 c=2683=3)-16 RRF.0FS

wn15(b)-63m12δ0=rpampquotHG20615 W

bl250(B)-16rf b=4 f1=2.5 S=3 H1=16

WN600-10RF b

SO125(A)-300 G1RF-405900 rf.

wn100-300rfb=1552

47022 FM2800-0.25254.

wn32(b)-63rf b=3 s=4h=ch=�s

SO500(B)-16RF6rfC=124