We offer hot rolled spring steel bar , cold drawn spring steel bar , the shape of the bar can be round , square , flat ,  according to the drawings , like SUP9 , SUP 10 , GB 55Si2Mn , GB 65 , GB 70 etc.

our produce the spring steel flat bar 80% in china ,is the best spring steel in the world.

and the large quantity ,if you want to buy this from us ,please contact me, thanks!