... size ,high qulity and perfect finish on surface. Metal Screw is made by one of the CY hareware manufacturer : 1) ... 8years production experience,2) CNC machining hardware manufacturer ,3) Varuiys types 4) OEM is welcome. Features:Excellent and high ... , stainless steel, aluminum alloy, zinc alloy, brass, gray iron,3.Process: investment casting, die casting, gravity casting, sand casting4.Machining ...