... carbon steel; medium carbon steel(1035/1045); Alloy carbon steel;stainless steel;brass etc.GradeDIN:4-12: SAE GR.A-GR ... .8 8.8 10.9 12.9Material: carbon steel, brass,stainless steel, spring steel, alloy steelPacking: Paper carton box and then palletMainly ... & design.2. Material:Carbon steel( T40,T45,Q235), Alloy steel, stainless steel( SS304 A2,SS316 A4 etc), Brass or according require3 ...