Zhoushan Jia Long Screw Manufacture Co., Ltd. specializes in making screws and melted rubber cylinders. Meanwhile, we are an appointed enterprise of plastic machinery in Zhejiang Province. Our company has a powerful technology team, advanced processing and production equipment and rich experience. We have specialized in making screws and melted rubber cylinders for more than ten years. We stick to the tenet of "taking quality as the heart of our company and wholehearted service". We do our best to provide you with high quality products and thoughtful services. We hope to march on with old and new customers at home and abroad.