Docol 1200M: Docol 1200M can be supplied in the form of hot-rolled steel and cold-rolled steel. Docol 1200M martensitic steel helps to improve the anti-collision performance and provides reliable guarantee for lightweight design and cost-effective production in the automotive industry. Docol is one of the cold-rolled high-strength steels on the market and has become a material for applications such as side anti-collision beams, bumpers and structural parts in the automotive industry.