DAJ started its business from hardware distribution in 1991 and established its own factory in 1998. Thanks to continuous R&D efforts, high-efficient production and strict quality control, DAJ rapidly became one of the leading professional manufacturers of pneumatic nailers in Mainland China.

DAJ has acquired ISO-9001:2000 quality system certificate and international quality certificates, such as CE, GS and UL for most of our products. SA8000 is also implemented in the corporation. Moreover, DAJ owns currently more than 26 patents of air nailer worldwide (in USA, Canada, Norway, Australia and China).

DAJ synchronizes the development with trend of this industry. In 2004 DAJ started to manufacture nailers in Magnesium body. In 2005 & 2006 DAJ invested more than 2.5 million U.S. Dollars in purchasing of CNC machines and rebuilding of R&D center to approach professional level quality. DAJ always tries its best to provide customers high-quality products with reasonable price & good service. We welcome you sincerely and hope to cooperate with you in the near future!