ISO 9001 Amercian Standard

ISO 9001 UK Standard

DCL Approval Certification

CE Certification

SGS Third Party Certification

Amercian Element Test Report

0.01mm Slip Test

3.5 million cycles fatigue test

Permanent Elogation Test

Thread Patent Certification

Cryogenic Rebar Coupler 

Patent Certification

Rebar Straight Thread Coupler 

Qualified Certification

Construction Enterprise Certification

Project Construction Recommendation Certification