... ISO9008:2008. 2013 top quality and customized all size of bolt nut in dongguan and shenzhenWe ... ect.Tolerance+/- 0.001mm,can also customizedSizeDifferent size, according to customer's drawing.MOQTrial order ... machine.File FormatSolidworks,Pro/Engineer,Auto CAD,Solid Work 2001,CAXA, UG, CAD/CAM/CAE,PDF ... . Our products have achieved a high work precision with the ultra precision tolerance within 0 ...