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NANIWA is a Japanese manufacturer based in Osaka. NANIWA has been constantly developing bold new products and always upgrading its line-ups. Products from NANIWA is focusing on "abrasion" which means, cutting, grinding, sharpening, polishing, and engraving. They have literally cutting-edge technology! NANIWA is a Japanese manufacturer producing sharpening stones for industrial and home use, diamond tools for processing stone and other materials. NANIWA

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