Nanjing Hangyao Ventilation Equipment Co., Ltd. is a high-tech environmental protection enterprise specializing in the research and development, production of ventilation and cooling equipment, and undertaking ventilation and cooling projects. The company is committed to national energy conservation and environmental protection, with a high-quality workforce, rich product expertise, and targeted engineering design standards, which can fully meet the needs of users. Hamai Environmental Engineering Co., Ltd. is a modern enterprise specializing in the design, manufacturing, and installation of negative pressure fans, cooling water curtains, and environmentally friendly air conditioners. The company mainly undertakes the operation of negative pressure fans and water curtain ventilation and cooling equipment, environmentally friendly air conditioning ventilation and cooling equipment, which can be widely used in industrial plants, plastic injection molding, auto repair and maintenance, hardware die-casting, petrochemicals, paint electroplating, logistics and warehousing, horticultural greenhouses, public facilities and other fields.