The LARGE Ground mounting system has been developed as a universal PV modules, mounting system for open space ground installations. The system composed with Strong, ground aluminum T rails and U steel rails , the special "D" modules, H90mm support pipe, H connector ,ground base, ground screws and the high degree of pre-assembly easy and quick to save your labor cost and time. The customized length can eliminate the weld and cut onsite to keep the high anticorrosive performance, the structure strength and the appearance.