Qingdao vast sea plastic machinery co., ltd is a professional production of high performance, high-quality plastic machinery equipment, high-tech enterprises, the company is strong in technology, research and development ability, perfect service and thoughtful, has been in the industry has a number of patented products and leading Technology. Plastic extrusion technology for deep understanding and excellent machining capacity, the quality of their products unique, long-term accumulation of production experience, a wealth of successful experience in domestic and foreign equipment commissioning of seminars and master the latest technology...