GB/T 29465  法兰 C-M 1500-0.25/20δ0=200

5 CM 1500-0.2520δ0=200

WN 1 1/2"-150 RF

WN25(B)-25mS=30FF3

WN 150-300 RF S=3.4100 RC260F0-150rf S

BL50(A)-25 T RF/615/f=6b=30R0(130-280F=RF50-6.00

wn100-300rfsch40ss=8��f4.0/64-1506RFF S

wn300(b)-16fm—&

WN32-40FMI 6PFM S=40-1.

WN125-