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Sumitomo Electric Hardmetal Corp. was
established in April 1, 2003 .
Sumitomo business activities consist of Development,
production and sales of cemented carbide, CBN and
sintered diamond cutting tools (brand name: IGETALLOY,
SUMIBORON, etc.), wear-resistant tools and materials,
optical parts for laser beam machines, diamond
electronic parts, etc.….
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