You are welcome to Singsino! Qingdao Singsino Group Limited under Singsino Group is a leading supplier of flexible technical hoses made from PVC materials. In the market since 2004, it has been able to renew itself over the years, keeping at the forefront of the market. Its factory has a production base more than 40,000 square meters, and its employees are more than 300. There are over 100 various processing equipment. Its product design, processing, assembly and testing shipment are ...