maituosi doors and windows. Paige doors and windows have independent R&D team and advanced production equipment, paying attention to the sound insulation, heat insulation, energy saving and safety performance of doors and windows; Metos doors and windows have their own production base and R&D team, and pay attention to the intelligent, comfortable and aesthetic design of doors and windows. The products meet the technical standards of EU CE and American ASTM doors and windows, and the relative standards are stricter.