GB/T 12459  异径三通 DN 400×400×8-Sch120TRF389416RF2.510006

DN 400×400×8-Sch120 TRF389416RF2.510006

DN100-PN63 WN M Ⅱ S=4

BL250B-25FF/1fCFRF0e2/u0082-â

bl80-16rf=F rf a=

BL300-100RF T=90兰-0/forum.html s

so50-25rf B=65 b=36RFF97 C=5816RF0592 RF s3.2

wn20(a)-100 rf s=46

BL65(B)-160RF6B)-(B)0/b)-16

BL3