GB/T 12459  异径三通 DN 500×500×25-Sch160TR

DN 25×25×500-Sch160 TR

wn80-1500rj c=58n/1.21==3080-Y¬1600s5R

wn125-300rf 2030RRFm9=60RF800-s/F std-25 rfRF

wn40-1500 rf sch160pquothg20615 wn450-600rj&ampamp

WN50-600RF A=57 S=3(0-2.59 srf S=0/K00-)150RF

wn100(b)-10fm-

BI 110050rF sch49 S=4)-1