HG/T 20592  法兰盖 BL 250(B)-10 RFRFf0RFB/u00ef/data/public/public/common/qq.png

SO 15-1500 RJ0060�,d=214sch4=4)- H/-2d

wn15-150 rf sch40 a=48 s=

pl80-16 rf dfD00ch4

PJ/SE 400(A)-16 RF

SO 300-10 RF D0 RFN=660 A=636 S=17

wn200-300 fm b30b1500-0.6RF5F=

wn250-900 rf h1=7

so40(B)-16rfrF)-)-2020δ0=1

LWN 20-300 RFa/2h S/FSch10SSCH40