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Orient Sundar Group was established in 1988, adhering to the vision of Making Building More Energy-saving and Making Life Getting Better. It has devoted to the research and application of energy-saving door & window and green energy-saving building for a long time. For over 30 years, it has realized the leapfrog development from energy-saving door & window to ultra-low energy consumption building, and has become the world’s only Whole Life Cycle System Integrated Enterprise in Ultra-low Energy Consumption Building. At present, it has the world’s only intelligent manufacturing base in green energy-saving building whole industrial chain, and has successfully created two core brands of Moser Door & Windows and Lowcarn Passive House, the products involve hundreds of green & energy-saving building industrial chain core products, such as passive door & window, intelligent sun-shading, sealing system, ventilation system, new exterior wall thermal insulation material, etc, which have obtained international certification of EU, North America, Australia, etc.