GB/T 12459  偏心异径管 DN 80×50-5.49RE

DN 80×50-5.49 RE

WN80(B)-16 RF2m

wn450-16M/1@b0F3��501-2@40@6R

PL38-10RFFh160FF�501-2@40@6R

WN100(B)-100 RF0

bl25-63 RF Sch40aa2/data

DN 25×15-3.5 RC

DN 65×25-5.16 RE

PL 80(B)-10 RF2/u.)-Srf0-R

PL 300(B)-25 RFh400m0L1000-10RF-R1/6.1a5 RJ�@