HG/T 20592  法兰盖 BL 500-16 Mfsp1100-f

bl500-16mfsp1100-f

WN600-150 RF B=574

WN 80(B)-10 RF S=4.5

3 RF 550-2.5 δ0=8

SO 50(B)-16 RFRFδ0=8 RF S=4.510F5 RJ R1cB80RF Sch80S5 RJ0SM0 RF/���77.5 RJ Smpa

21520PL80(B)-16RFpwd=

WN 2"-150 RF Sch40

SO20-300RF

WN32-600RF6MnII/f.5F1.аЂ