Bolt, Nut, CNC Machining Parts manufacturer / supplier in China, offering Customized Carbon Steel Oxidized Black Stainless Steel Base for Engineering/Furniture/Electronic Enginreering, Customized Carbon Steel Oxidized Black Round Head Screws for Furniture/Electronic Engineering/Engineering/Mechaical Engineering, Carbon Steel Customized Oxidized Black Round Head Screws for Furniture/Mechaical Engineering/Electronic Engineering/Engineering and so on.