Zhoushan HITA Plastic Machinery Co.,Ltd (J-LONG SCREW)is a professional and leading manufacturer which is specializing in the wide range of Screw/Barrel designing,manufacturing which are used for different types of plastic extrusion machine and Injection moulding machine,Rubber Extrusion machine.The factory was founded in 1991, located in Jintang town,Zhoushan City, Zhejiang Province China,where is named  Chinese famous screw twon, as well-known of the best quality and technology on screw /barrel of Plastic machinery industry in China. It takes 40 Minutes to Ningbo, 2 hours to Hangzhou,3 hours to Shanghai by driving.