GB/T 12459  弯头 DN 25-Ⅱ-6180EL0S0pampcF4F

DN 25-Ⅱ-6 180EL0S0pampcF4F

PL40(A)-16 RF HG/T20592-200916

4 A3900-142-128f1FF1F600-3FMfF0

pl50(a-6ff=128b=40

NB/T47023 FM500-4.0ch40m S=6000-2/.55 RF6RFR0(B)106ii l.

PL 50(B)-10RFF61M S=45()F1000-R

wn 40-300 rf s

wn100(b)-16 rfs=8

PL 80B-16 RF=7s6M