HG/T 20592  法兰 WN 500-16 RF S=9.53�=435 B)-f1 R

WN 500(A)-16 RF S=9.53�=435 B)-f1 R

BL350(B)-16 RF C=29.5 f1=2.5h10S RC89/06562Sch80=

WN 15(B)-63 RF S=70650-17RF b=46R524B=mx/F S=13

WN450(B)-10 fmSchF58FC=1=3 d=266400

2 G 500-2.520δ1=1016t450S=809s

BL125(B)-300RFF SchFRFN= A=

wn350-300t0b=3805-