NB/T 47022  法兰 FM 400-1.6 δ1=6

bL50-16 RFFS Sch 8.6R0S7.5S=

2 FM 400-1.6 δ1=6

PL 125A-10 RF470

A WN 950-150 RF1otز±ذ

NB/T47022 CFM1600-1.0408RFRFS=3.5,20,HG/T

PL 150(B)-25 RF D=299 f1=

pl600(a)-10rf1001æ—&ampamp

PL 500(B)-10 RF0F D=´=3

PL 50(B)-10 FF D=150 K=120

pl65(b)