GB/T 12459  弯头 DN 500-Sch10S45E3D δ=10

DN 500-Sch10S 45E3D δ=10

wn250-150rf0-16 RF08

wn25(b)-10 rf1025/

WN600(B)-25 RFS=6 T

PL80B)-16RF BB=1 RF B=315

20592 bl 40-16 rfSch10S�—0- S=3ÃŽsch16 R

BL125-16 RFFRF76mpampa=5žºäm5RF/52ampam

wn950-150rf20

WN 50(B)-16 RF S=503R6/ SB

bl100-1