... part:Q235B,ST37-1; 2.precision:0.1mm; 3.thickness: from 0.5 to 15mm; 4.surface treatment: zinc plated. 1 ... steel;2) precision of stamped part: 0.1mm;3) machine: punching machine from 5T, 15T,30T,40T,60T,80T,100T,120T,150T,200T ... we can do: 15mm;7) Other Production equipment: bending machine, nibbler, hydraulic machine, table drill;8) surface treatment: zinc plated, powder coating ...