... and ISO9008:2008. 2013 top quality and customized all size of bolt nut in dongguan and ... threading,welding, tapping, riveting,cutting,punching,drilling,turning,milling,grinding,rolling,cold drawing, spinning, forging, etc.MaterialAluminum ... , furniture,industry,agricuture,etc.Machining equipmentCNC milling&turning machine, general milling&turning machine, grinding machine.File FormatSolidworks, ...