Hello, We are Qingdao Ruichang Plastic Machinery Factory: 
 We are available for Prestressed Plastic Bellow (Figure), stressed plastic corrugated pipe equipment (Figure), prestressed plastic spiral pipe equipment (Figure), prestressed plastic flat tube equipment. Prestressed plastic corrugated pipe equipment and technical personnel Ruichang hard plastic machinery factory successfully developed new products, prestressed plastic corrugated metal bellows tube is an alternative to a new product. Phone 0532--83275820, fax 0532--87270629