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1953 boron carbide (b4c) products are offered for sale by suppliers on Alibaba.com, of which ceramics accounts for 26%, other inorganic salts accounts for 6%, and tool parts accounts for 2%. A wide variety of boron carbide (b4c) options are available to you, such as industrial grade, agriculture grade and reagent grade.You can also choose from gray, white boron carbide (b4c),As well as from crystal, white powder boron carbide (b4c),