GB/T 12459  异径三通 DN 300×300×200-Sch30TR

DN 200×200×300-Sch30 TR

wn20(a)-25 rf s=

BL40B-40 M/ RFIIN25-1=856 M45

wn 65-300 rf

wn100-160rfРҝ HRF6sTo0.622Ã60231356hH=1fm0-400ce/u00

WN 300(B)-25 FM S=12

WN15(A)-25 RF 10h=16

47021g450-0.63fmCH

WN 80-600 RF Sch40SSch860=13/hf00 80 Sch40/46