We are manufacturer of abrasive products in China and invested by Japan RIKEN CORUNDUM CO., LTD, who is the leader of coated abrasives industries in Japan. Our RIKEN Earth brand products include superior waterproof abrasive paper and dry abrasive paper. All our base materials are selected from strictly and carefully testing. Our coated abrasives are made of Japan standard abrasives, high intensity bond coated on superior kraft and latex paper which are imported from Europe. Adopting Japan ...