Beijing First World Science & Technology Development CO., Ltd located in Beijing，the capital of China. Bei Jing First World Science And Technology Development Co., Ltd is a professional team integrating Research & Development, Design, Manufacture and Sale. <br />With a strict quality management system, advanced production equipment and technology, professional engineers and excellent after-sale services, we can manufacture automatic backflush filter element with best quality. At present，we have set up a long-term stable relationships with many steel mills，and won much praise and fame from the customers. Bei Jing First World Science And Technology Development Co., Ltd is a looking forward to having the opportunity to establish co-operative relationships with your company. <br />