GB/T 12459  异径三通 DN 1300×1300×20-Sch10TR

DN 20×20×1300-Sch10 TR

BL125(B)-6RF rh80SG/

PL100(B)-25RF b=5

BL400(A)-16 RF16SRFSJ15

wn20(b)-63mf1f/u00c3/data

WN 80(B)-100 MF sc4.0)-/4

WN10-10FM/00RJ"h40S

PL600(B)-16 ffO-1.05sFF

PL350(B)-16 RF rf hg

wn20b-10m1100-10R���…F=��0-2.