Zhejiang AMA&HIEN Technology Co., Ltd. is a state high-tech enterprise incorporated  in 1992. It began to enter the air source heat pump industry in 2000, registered capital of 300 million RMB, as a  Professional  manufacturers of development, design, manufacture, sales  and service in the air source heat pump field. Products cover hot water, heating, drying and other fields. The factory covers an area of 30,000 square meters, making it one of the largest air source heat pump production bases in China.