Founded in 1995,3U Super Hard Products Co.,Ltd.,as a high-tech enterprise,specializes in manufacturing the diamond products and CBN products.We are in possession of rich technical force,great creativity and high-level fabricating skills. Ceramic diamond wheel of 3U brand which registered at year of 2007 is in conformity with the quality management system ISO9001-2000.Meanwhile,they are reputed among our old and new customers. Our competitive pr