DAJ boasts of sound management and solid structure, besides the ISO-9001 international quality certifications, also past the CE / GS safety tests and certification & UL certification. At the same time, DAJ is implementing SA8000 system.From 2006 ,DAJ also arrange the production and manage factory according to the requirement of SIX SEGMA SYSTEM.Because of strictly in quality, DAJ products has got the passport to Europe and America supermarket and tool market.

From Nailer parts to Finished products, DAJ have establish a Consummate internal quality control systerm. there is a strict quality report systerm and process map for purchase parts and mass production. all the process must administer according to the Process Map,The purchase parts process have been contronled by QC department. They will evaluated the parts supplier in time and cancel disqualification factory to ensure the quality of parts. In the other hand, They have a QC team more than 5o peoples, there are different checker as Initial survey, selective examination, Final inspection,etc to control quality. All new worker will accept training of how to assmble product in right and safe way by Professional