... 2008. 2013 top quality and customized all size of bolt nut in dongguan and shenzhenWe can supply various bolts ... ,cutting,punching,drilling,turning,milling,grinding,rolling,cold drawing, spinning, forging, etc.MaterialAluminum, copper, brass, stainless steel, steel, iron, ... , wooden case or as customers' requests.UsageAll kindsof auto parts,machinery parts,computer parts,medical parts,home appliances ...