NB/T 47022  法兰 M 1600-1.6/20δ1=141=600 rj

PL200-16RF8 Sch RF S5=700

2 M 1600-1.620δ1=141=600 rj

BL500-6 RF8.0N.5 hg/@so10

PL350(B)-16G-91.0 δ-F0 rf h=42am

PL300(A)-2.5RFd/

WN150-300 RFWN80-90010fm36

WN 450-150 RF S=1o.

WN 250 -300 RFF Sc.5/

47022 FM 500-2.5F5rj b=67F S=NPT H-125-

PL40-16 F