Nanjing GSmach Extrusion Equipment Co., Ltd. is an advanced high-tech company made up of those who have experienced in the field of research & design, manufacturing , marketing and services for many years . At present , we have been specializing in the provision of equipments mainly high-efficiency single-screw and twin-screw compouding extruder systems in complete set . The product series of our company include single-screw extruding system , co-rotating twin-screw extruding system , and other auxiliaries etc .