... ,styles are available; 2 Best quality,best price,best service. Screws,Nuts:1 Size:all sizes.2 Material:aluminium,copper,stainless ... factory.Main equipment:CNC lathe,automatic lathe,hand lathe grinder,thread rolling machine,tapping drilling machine and etc.Surface treatment according ... ,nickel plating,gold plating or chrome plating,anodizing and painting. Screws,Nuts