GB/T 12459  等径三通 DN 750-6.02TS0

3 M 1400-4.0 δ0=90ampa

DN 750-6.02 TS0

WN25(B)-40 FM)-1650-16M603F-150)-M603F-

PL100B-6Rf5

SO80-10RF5R

BL 300-300 RF RFRFM1/ Sc40

so 450-150 RF S=9 R/F Sc/500ch40=3rffh8

DN 100-8 90EL6R-6pampampl100 lwn2

so100/@bi100138水线 b=292WN450(B)-2

WN20-90