HG/T 21574  吊耳 LP-2

LP-2-1s=h808f0 RF@40406mpampampampampa2/rf4FB-1f6M6 rf b=3 S=3 mh26516(B

WN900-40 RF) wn855660rf S4.6 δ=425=0 S5 42=7.2F

WN10(B)-25 RF S=31165RF7040=4.3-16g s S=3

LJ 18"-300 SFM Sch120

wn50(b)-63rfs=6Sch60= f1=3 ssch

BI 2000r-1.6/70

PL40(B)-25G