黑礬 的英文怎麼說
中文拼音 [hēifán]-
Kebiao black aluminium oxide abrasive is featured with high hardness, strong tenacity, good self - sharpening, better cohesiseness, higher durability, less heat generated in grinding and giving the metal works high finish, less power weakened in grinding
以三水型和一水型鋁礬土為原料經電弧爐高溫治煉冷卻加工而成。 "克標"牌黑剛玉磨料基本粒集中，切削力強，韌性大，剛柔相濟，耐磨性好，工效高。
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