HG/T 20592  法兰 PL 100-10 FF=S=3.5mmS=4.55F65-11

PL100(A)-10 FF=S=3.5mmS=4.55F65-11

BL 150-150 RF

WN 250(B)-16 RF RF A=720=12.50R/4

PL40(B)-10 RF B1=46

wn25-63RF S=4 S=3

WN200-900 RJ Sch80

pl200(b)-10rFff s=9000-104.56 D=wn40-1A¦ RF

PL125(B)-16 RF.5=241F=267/1ampam200O(B)6620δ0=2-

PL250(A)-10 RF