Due to the high processing temperature, poor fluidity and small moulding temperature range of PPS resin, the extrusion and moulding of PPS pipes has always been a big problem in the industry, especially with the modified heat-conducting materials after high filling. Therefore, the company's R&D team has overcome these difficulties through close cooperation with the university ,years of practice, constant improvement and optimization process. Our specific technology is is obtained through high temperature (300~315 ℃ for 7 heating modules) - pressurization - shaping - cooling process by the screw extruder.