Inner tube valve with brass stem for bicycle tyre

Q:What? s the difference between Chrome plating,Nickel plating and Zinc plating?

 A:1.Generally speaking,Nickel Plating and Zinc Plating is barrel plated,Chrome plating is rack plated.

     2.Appearance.Zinc plating is white ,not so glossy;Nickel plating is silver ,glossy ,a little yellow;Chrome plating is white,glossy,a little bule.

     3.Rust Resistance.Zinc plating is OK,Nickel plating is better,Chrome plating is best.

Q:What?s the difference between Brass(Copper) and Zinc alloy?      

A:Zinc alloy, low melting point, good liquidity, easy fusion welding, corrosion resistance in atmosphere, deformed material easy to recycle and remelting;But low creep strength, prone to natural aging changes size.

    Pure copper density 8.96, melting point is 1083 degree centigrade , with excellent electrical conductivity, thermal conductivity, ductility and corrosion resistance.

Q:How to store tire valves?

A:Products should be stored in a dry and ventilated, anti high temperature, sun proof, corrosion resistance, no oil warehouse,storage no more than six months since the date of delivery.

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