screws all types 1.ISO 9001:2008 certified 2.OEM manufacturer 3 ... tolerance 4.QC inspect after products finished Part Name: screws all types We can provide fabrication, deep drawing, Precision secondary processing, ... , bending, plating, assembing.-Equipment: tonnage 5T-500T punching machine, bending presses, plate cutting machine -Surface treatment: painting, anodizing, sandblasting, chrome plating, ...