GB/T 12459  异径三通 DN 950×950×20-Sch40STR

DN 20×20×950-Sch40S TR

WN1-1/4"-150 RF Sch10S9 D

47021C-FF600-0.68F0H0

47021 RF700-1.0/58F�’51R=Р�T RF81 1

47023 fm600-2.5 δ0=180-105l.5RFsch401.1

PL400(B)-6RFS=82.5.4/980tyooii5 k=650 l=33 c

PL20(A)-6 RF b=30-1.80D=

bi 400-2

so100b-40