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日本住友电气工业公司,新近研制成功两种烧结金刚石刀具材料:“DA200”与“DA150”,均已作为商品正式投入市场销售。“DA200”是微细颗粒金刚石烧结体,粒度在0.3微
Japan’s Sumitomo Electric Industries, recently successfully developed two kinds of sintered diamond cutting tool materials: “DA200” and “DA150”, have been officially put on the market as a commodity. “DA200” is a fine-grained diamond sintered body with a particle size of 0.3 micrometer