HG/T 20592  法兰 PL 125(B)-25 RF b= L=2

PL125(B)-25 RF b= L=2

wn50(b)-16 rf 57*3 S

BL 2"-900 RFu-6. -146Ff3.

so150(a)-16 rf b=30-1656rFrumh0615500(b)-16S0

wn200-25rfs=.50´1RFSch10S-2.52=--6m150

SO25-25Gb)-10sFs=016

3 FM 1100-2.5040.0060δ=60 h=1

wn50-150rf,s

WN65B-160RF09 B=0(=B2