HONOR - DINGLI

: Design qualification

: Design qualification

: Steel Structure Engineering Certificate

: Chile 220kV Lattice Tower Load Test Report

: Chinese national standard drafters of concrete pole and steel pole

: First prize for Q690 steel tube tower design and application

: Steel pipe tower double pipe climbing ladder with cage patent

: Costa Rica material quality Certificate

: Photovoltaic Engineering Outstanding Enterprise Honorary Certificate

: National Excellent Welding Special Award

: UHV lattice steel tower cross-filled plate welding patent

: UHV lattice steel tower vertical test assembly device patent

: Chile NCH 203 certificate

: Safety production license