GB/T 12459  弯头 DN 20-290EL=4.5(-1-0000-16 RF/66-0

DN 20-2 90EL=4.5(-1-0000-16 RF/66-0

WN2000(b)-10rf s5 RFR35rf s-1.0)J

WN150-16RFh8046

PL50(A)-25 M009 BL5/-1.5 &am

so 300(a)-25rfSom/ wn450-600230/u00c3/u008ww=F

WN25(A)-16RF S=2.

WN150-300 RF SCh80S00/6F11�.5 RF

Wn25-25rfcCRFfm s=7.1r

Q245R PL5