Yaitai Tieben Mechanic Company located in Taocun industrial park of Yantai city. The company wwas founded in 1952 with mechanic design and producing experiences of over 60 years and many senior special research and development personnel engaged in production research, design and producing with strong technical strength. It is the major producing enterprise enterprise for the production lines of metal composite laminboard like polyurethane, rock wool and glass wool. The production line adopts self-owned patent technology to produce products of energy-saving and environmet-friendly to supply technology equipment for construction energy saving.