GB/T 12459  偏心异径管 DN 1300×10-Ⅱ-5.5REN20-150 RF

DN 1300×10-Ⅱ-5.5 REN20-150 RF

wn300b-63rf s=12.55.pampampampamp105f0025(b/mpam

pl250(b)-16rf b=7/8/26.6F71610rf-12

so15-25t450-25rf200f-1.6/

PL100(B)-16 RF10RFFCH40S

BL250-6RF0-0.6/70-1655Fm/

WN50B-16RFFm s=42013 WN25

2B2750-1�1==(B)S=

3 rf 1800