JNFLEX (CHANGZHOU) CO., LTD (the former is Changzhou Jiangnan Prestressed Corrugated Pipe Factory) established in 1995 and located in Changzhou, Jiangsu province, is a high-tech enterprise dedicated to providing customers with flexible connection and protection products and solutions. We specialize in the design, development, production, and technical service of various corrugated duct, flexible ducts and tubes, stainless bellows, and kinds of plastic corrugated hoses. Heat protection tube,heat