TRI-LINKGROUP

Our products had got the Certification from UL,ITS,SGS under various customer's requests, our factories had passed the Audit of Honeywell, Allegion, Spectrum-HHI,BSI,Sedex etc... We anticipated the standard set-up for locks as well as the principle set-up of lock industry. We are the vice-chairman corporation of China Hardware Association. We made the cooperation with Software Institute of Chinese Academy of Sciences, National Institute of Computer Technology as well as the Institute of Hardware Research of Shandong Province.