since in 2021 year ,ARMOR TOOLS affiliated with Shanghai Natural Diamond Tools Factory Sales company , and (ND) has been a leading diamond tool manufacturer for 23 years in China. We have earned a reputation for innovation, precision, quality and value of diamond dressers, diamond cutting tools and glass tools with manufacturing sites and repair factories in China.ND diamond tools are application-orientated and are high precision cutting tools.With the rapid development of Chinese industry, we take research and development as our heart. Our professional engineers design more than 5,000 kinds of special diamond tools for different manufacturers, giving support to auto and high precision factories.We look forward to have agents worldwide.