Shanghai Numbers Industrial Co., Ltd. is a company specialized in designing and producing air conditioners & refrigerating equipment and controllers. The old site of our company once was one of the China's Earliest Household Air Conditioner Production Bases. Our two new production bases cover an area of nearly 100,000 square meters. Our technical strength is strong and self-contained. Our company has an annual output of over one million sets thanks to many specialized production lines for air ...