... 4.RoHS compliant and ISO9008:2008. 2013 top quality and customized all size of bolt nut in dongguan and shenzhenWe ... spinning, forging, etc.MaterialAluminum, copper, brass, stainless steel, steel, iron, alloy, zinc , carbon steel, rubber and plastic .etcFinishPolishing; Anodize; ... 10) Give customer professional suggestion while in the process of customer designing to save costs.Our freight price is ...