GB/T 12459  偏心异径管 DN 1400×1100-10RE010-58ch80ch1m

DN 1400×1100-10 RE010-58ch80ch1m

so50-150RF SRF442/300.740 RF0(B

BL15-16RF00RF S=12RFRF

SO125(B)-16RF(B)-4pam15 f�

wn500(b)-16 fm s=

WN50-300 RF S=3.686 FF R

PL 500-16 FF S=10FM-s/

DN200-PN6 PL RF IIH40SRFВ=

LWN150-300FM4 h15.5F30/H

SO100(B)-16