Qingdao Yongjian Machinery Manufacturing Co., Ltd. is engaged in marine ventilators, valves, air pipe heads, and other ventilation accessories.

There are more than 30 series, 160 models of marine fan. The centrifugal fan, axial fan and explosion-proof fan is the main products. And the marine valves are made of cast iron, cast steel and bronze, the standard are according to JIS, GB, DIN ect. The flange of the air pipe head can be chsen by customer's request.

Our company has been accredited to the quality management system certification of China Classification Society, GB/T9001-2000-ISO9001: 2008, Quality Management System Certification. The products are certificated by the China Classification Society (CCS), BureauVeritas(BV). We can manufacture according to the request of Nippon Kaiji Kyokai (NK), Lloyd's Register (LR), the Russian Register of Shipping (RS), Korean Register of Shipping (KR), Italian classification society (RINA), the Greek ship-class Society (HR) ship classification society.

We sincerely invite all friends to visit our company and work together to create the brilliant future!