GB /T 1222-2007 Spring Steels
|
85
(U20852)
|
|
GB /T 699-1999 Quality Carbon Structural Steels
|
85
(U20852)
(85#)
|
|
GOST 14959-1979 CARBONACEOUS AND ALLOYED SPRING ROLLED STEEL SPECIFICATIONS
|
85
|
|
GB /T 699-2015 Quality carbon structure steels
|
85
(U20852)
|
|
GB /T 1222-2016 Spring steels
|
85
(U20852)
|
|
YB /T 5058-2005 Cold-rolled spring and tool steel strips
|
85
|
|
GB 3525-1983 Cold-rolled spring and steel strips
|
85
|
|