19 years focused on producing a customer-satisfied negative pressure fan. The company was founded in 2003 with a registered capital of 5 million yuan.It has 19 years of experience in manufacturing ventilation equipment. Theheadquarters and R&D base are located in Zhangwu Second industrial Park, o15-minute drive from Dongguan East Railway Station. The factory area isabout 20,000 square meters , with 14 national certification patents, is ahigh-tech manufacturer integrating production, design, R&D, sales andservice.