HG/T 20592  法兰盖 BL 50-40 FMп╟п┌п╟б■s=4500-s /@B WN1000-150 RFf s=10п╟п┐п╟б┌

BL50-40 fmп╟п┌п╟б■s=4500-s /@B WN1000-150 RFf s=10п╟п┐п╟б┌

so250a-150rf@0fmF1Fm

SO 80(B)-16 RF400-600RF7.62 S=7RF6

WN200-160FM/05 S SC/ B/am

PL 100-10 FM0- H=152.4.6

3 B3 d54-¢Ã¢Ã

WN 100(B)-40 RF S=6

WN18"-300 R