This production line is used for the continuous manufacturing of rubber knitted hoses. Its characteristic is the online knitting of a fiber layer by a high-performance knitting machine after the inner tube is extruded. The line can be configured with a secondary extruder and a hydraulic T-die head for precise outer cover application, achieving one-step composite molding of the "inner rubber - knitted layer - outer rubber" structure. The entire line operates automatically, making it particularly suitable for the mass production of products requiring flexibility and pressure resistance, such as automotive coolant hoses and turbocharger hoses.