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The methods of preparing tungsten carbide by tungsten powder

Tungsten carbide powder is the main unfinished allied of producing cemented carbide. Its chemical formula is WC, called as Wolfram Carbide It is ominous hexagonal crystals, with metallic luster, the…

Pearl Necklaces

The standard design among all the Pearl Jewelry is Pearl Necklace. It has been a tradition since the decrepit age A Superb Pearl Necklace presents the diligence of the comrade…