| 摘要 |
A plating bell sinker is provided, which improves the mechanical property and corrosion resistance by forming a plating layer in the outer cover of the main body. A plating bell sinker(100) comprises: a main body(10) made of the iron element; and a plating layer(20) in which the thickness of the outer cover of the main body is fixed. The plating bell sinker is made of harmlessness iron instead of the lead and prevents water pollution. The iron alloy material includes the cast iron, the cast steel, the special alloy steel etc. The plating layer is formed by tin plating, zinc plating, or the nickel chrome plating. |
