WEIFANG HENG AN IMP & EXP Co., Ltd. is a high-tech enterprise integrating scientific research and development, manufacturing, marketing and engineering services of energy-saving and environmentally friendly products. The company's main products include open and closed circuit cooling tower, evaporative Condenser, air cooled heat exchanger, nano fluid heat exchanger, etc. Products are widely used in petroleum, chemical industry, pharmaceutical, coal, electric power, steel and other fields. The nano fluid heat pipe heat exchanger jointly developed and produced by the company and famous domestic universities has excellent heat exchange performance. We have made outstanding contributions in industrial waste heat recovery, fluid and mechanical heat dissipation.

Nanjiang Machinery Founded in 1999, is a national high-tech enterprise and pioneer in manufacturing paper converting machines (Especially Paper Bag Machines & bag supporting machines) & Paper Bags (Especially Paper Sack Kraft Bag Machine-Tuber & Bottomer, E-commerce paper mailing bags, Shopping Paper Bag Machine, Food Delivery Kraft Bag Machine, Kitchen Organic Waste Paper Bags, heavy duty Paper Yard Waste Bags Machines, etc. )

Qingdao Hailong Machinery Group Limited