Shanghai G-Ren New Material Science & Technology Co., Ltd

G-REN TECH, LAUNCHING THE FIBERGLASS REINFORCED POLYURETHANE PROFILE. APPLY THE COMPOSITE MATERIAL THAT IS WIDELY USED IN THE AEROSPACE AND AUTO INDUSTRY TO THE CIVIL DOOR AND WINDOW SYSTEM. G-REN INDEPENDENTLY RESEARCHES AND DEVELOPS THE INJECTION BOX, MOLD. THE GR85 SERIES ENERGY-EFFICIENT DOOR AND WINDOW SYSTEM WAS CERTIFIED BY THE GERMAN PHI (PASSIVE HOUSE INSTITUTE) WHICH MEETS THE PHI CERTIFICATION STANDARDS FOR COLD AND COOL AREAS WHILE REACHING THE PHA GRADE.