The main application for the Palm product with broad and deep mold has become thin. To avoid sealing on the con and enhance the longevity of the mold, and I'm in contact surface of the insect or inserted it block docking was I surface.Make me a detailed surface alloy, often using the microwave oven frequency to just heating the surface section of the details.The gears, the shaft ... usually I surface to ensure high surface hardness (for abrasion-resistant), but the inside of it.
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