HG/T 20592  法兰盖 BL 80-100 FFu0/b)-1 RF ScF0ch406�0f/F@R�材�FMS RJ�1 R/da

bl80-100ffu0/b)-1 RF ScF0ch406�0f/F@R�材�FMS RJ�1 R/da

wn 100(b)-25 rf s=75 FF10S

PL650-16RFRJ

20615SO15-150RF

bl800(b)-16rf

lwn100-150 rf h=230=4F Sch40609 WN200(B)-16

wn 100(b)-25 rf s=75 FF10SFF Sh816 RFc2/=61.0fM50Rb1=

wn100-160tg02-16RF