?Zhangjiagang city Beier Machinery Co.,Ltd. is an enterprise which introduces and absorbs advanced technology of Germany and Italy, collects excellent technological personnel of managing, designing and plastics processing in our country, develops on its advantageous base.On the current base of plastics machinery manufacturing, the company has developed and produced TSK-climb twin-screw extruder ;double-step twin-screw/single screw extruder ,Themoplastic elastomer production line;fibre grade colorful material production line; wood plastics pelleting production line and so on.