GB/T 12459  异径四通 DN 80×80×-Sch60CRRF61.50RF0

DN80-Sch60 CRRF61.50RF0

WN32-16 RFC=40J0-0.6 δ

PL50a-16rf R00000/65-1

DN100-PN16 WN RF Sch4092009Sc20/

WN150-900 RJ Sch80n15-150rf-1.03.5=241.5l106R/FSz4F

BII 4000RF.641.0--300(10RFFRF0-

WN100-25RF HG/)/t20615f B=

PL40B-16 RF25 RF4.01 C=F.25 δ=5

BL