HG/T 20592  法兰 PL 450(B)-16 RF b=3 D=575 d=495 C=32

PL450(B)-16 RF b=3 D=575 d=495 C=32

WN125B-63M S=5=3 sch80b)05000 RFhg/t20615-2009 A=2

WN100-16FM0pl35chRFa80cn17800 f1=6 d=73fm60f=00 rj RFF.h400-

wn100-150 RF�0-1.0/56-1502m4)-6rf r)107rf10H4rf1F5061S=5J4f25160300-

wn 80(B)-40 RFFB)-16hhgп╡п�