... SUP10, SUP12, SAE5160 Our company enjoys domestically advanced cold rolling equipment, perfect quality testing system and heating furnaces which ... the demands of new or old customers. 1. Steel grade:SUP9,SUP9A,SUP10,SUP7,SUP12,SUP12V,SUP6,SUP7 ... .2-4.0*W3-400*C3.Delivery state: Cold rolled+Annealed+Heat treatment based on the users' ... with you in thefuture. sup12 sae5160 Cold rolled &spring steel strip