Silicon Carbide, Boron Carbide, Silicon Carbide Wafer manufacturer / supplier in China, offering ISO Grade Made in China High Quality Boron Carbide Powder 325 Mesh, Customized Silicon Carbide Sandblasting Powder of Various Particle Sizes, 99% Carborundum Grain 85% Sic Grit 0-1mm / 1-3mm / 0-10mm / 50mm and so on.