... top quality and customized all size of bolt nut in dongguan and shenzhenWe can supply various bolts, ... ,deep stamping,bending,punching,threading,welding, tapping, riveting,cutting,punching,drilling,turning,milling,grinding,rolling,cold drawing ... agricuture,etc.Machining equipmentCNC milling&turning machine, general milling&turning machine, grinding machine.File FormatSolidworks,Pro/Engineer,Auto CAD, ...