Qingdao Leader Machinery Co., Ltd. is a special professional manufacturing and supplying high-tech enterprises of new extrusion equipment. Since foundation, we follow: \\\\\\\\\\\\\\\"Independent research and development and innovation\\\\\\\\\\\\\\\", and have been dedicated to study and application of new products, new technology and new technology of plastics extrusion equipments on the basis of improving tradition, combined with international advanced manufacturing level