HG/T 20592  法兰盖 BL 65-16 FF5/826

BL65-16FF5/826

wn40-300 rf b=38�S� s5 RJc

3 FM 700-4.0/74-150h1600SlB)-S0 LT Sch40 FF5RF2@F9@RF689J@pl110

PL100(B)-25 RF RFF@F0a325A150 RF.Sch40Sch40/0J53FF950uothg20F5 RJ-1671@m�o����@RF@4

BI 400-S/F3.5i6

WN 25(B)-16 RF S=4

SO 500-150