K hat

　　Strength: 4 Material: carbon steel, alloy steel

　　Material: Low carbon steel

　　Material description: 1008A (aluminum deoxidized steel) steel is a cold forged or cold-rolled carbon steel, equivalent to the national standard 8 # steel, which can be used to manufacture standard parts such as fasteners. Its chemical composition is mainly C:<0.10, Mn：0.30~0.50，P： <0.030，S：<0.050

　　Surface treatment: Blue white zinc

　　Surface treatment content: Function: Rust prevention, decoration, and improved corrosion resistance Applicable materials: Various types of steel parts Coating appearance: Blue white Execution standard: ASTM-B633-98 Not environmentally friendly