Comparison:gravity casting technology.Productive principle:Aluminum liquid flow into truck mould by liquid's weight naturally, this way can delete mould's inside air clearly.Truck surface:A little rough, because of heat treatment.Producing speed:very slow, because of heat treatment, which contains solution treatment and artificial aging treatment.Suitable group:Whose weight is over 150kg, or who are very professional, do kickflip, backside, noseslide, etc these kinds of heavy movements often.Colour: silverMaterial: aluminum alloyPackage Contents:1 * Steering bracket1 * Auxiliary bracket2 * 6mm gasket8 * Screw + nutOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.