HG/T 20592  法兰 WN 40(B)-25 RF S=43

WN40B-25RF S=43

WN150(B)-25gBch0-1.05L53

WN700(B)-16RF S=10

5 RF 1100-1.0 δ0=10

WN15-300 M

WN 50-300RF Sch.4020592-2009j@5@ rfu00cï؟½ 2

WN15-300 RF

PL 250(A)-25 RF

bi 2431

WN50-150RF00592--25R=RFfsch�c@S10@44000HjuRF/u102c40rfSc5 d=266 b=4 a=21