Hebei Haoyuan Machinery Manufacturing Co., Ltd.Situated in the Innovation Industrial Park of Wangshu Town, Yanshan County, our company boasts convenient transportation with proximity to the Beijing-Hong Kong-Macau Expressway, Beijing-Shantou Expressway, and National Highway 205. We are a major production and processing enterprise specializing in the manufacturing of steel bar couplers and deburring and rolling machines. Equipped with advanced production facilities, laboratories, and testing machines, our company has a strong technical force and comprehensive production processes and testing methods.Primarily produces steel sleeve, steel connection sleeve, straight thread sleeve, sleeve:1. Utilizes international 45# steel, with a special manufacturing process for high dimensional accuracy and reliable quality.2. Connectable to ribbed rebars of HRB335, HRB400, and HRB500 grades with diameters ranging from Ф14 to Ф40mm.3. Inspected and certified by the National Construction...