... ISO9008:2008. 2013 top quality and customized all size of bolt nut in dongguan and shenzhenWe can ... .MaterialAluminum, copper, brass, stainless steel, steel, iron, alloy, zinc , carbon steel, rubber and plastic .etcFinishPolishing; Anodize; SandingPowder coating; Vacuum ... plating,ect.Tolerance+/- 0.001mm,can also customizedSizeDifferent size, according to customer's drawing.MOQTrial order without MOQ ...