Gongyi Dyan Trading Co.,LTD, grew out of Gongyi Dyan Machinery Factory, is a large professional enterprise, combining the research, production and trading of biomass renewable energy equipments, construction machinery and other large and medium-sized machines. Mainly, our products cover Oil Press and Refining Machines, Biomass Briquette Machine, Coal Briquette Press, Pellet Mill, Straw Fuel Machine and Corrugated Asbestos Cement Roofing Sheets Making Machine. With high efficiency ...