حصى كربيد السيليكون كربيد السيليكون
Black silicon carbide grit is one of the most popularly used abrasives for use in rock tumblers, boasting an Mohs scale hardness of 9.1. Only diamond and boron carbide grits surpass this material’s hardness rating. This makes them perfect for smoothening rough rocks to an elegant surface finish, particularly when used in combination with aluminum […]
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