... 0.5mm to 15mm; 4.surface treatment: zinc plated. High quality stamping parts for auto car1) material of stamping part:steel, steel alloy ... .1mm;3) machine: punching machine from 5T, 15T,30T,40T,60T,80T,100T,120T,150T,200T;4) mould design and produced: In ... never late than settled. ( expect for force majeure.)7. Quality control:-------------- Both in-house QC and lab test provided. Test report along ...