Beijing Chaoda Bellows Manufacture Co. Ltd is a new and high-tech enterprise, mainly engaged in expansion joints�fitter�Blast Furnace Tuyere Stock research, design and manufacture for more than ten years, with 65 thousand square meters area (38 thousand square meters building area), 218 employees (50 senior managers). Modern management system, advanced technology and facilities, reliable quality, and excellent service guarantee that our products can be fulfilled any requirements of expansion joints. In addition, our products have passed ISO9000:2000�GB/T19001-2008/ISO9001:2008 Quality Management system Certificate; ISO140012004; OHSAS18001:1999 and Manufacture License of Special Equipment. As a first-class supplier of China National Petroleum Corporation, member of Chinese city heating association and Architectural Association, we strictly follow quality control procedures to ensure that our products meet industry standards as applicable: GB/T14525-93, GB/T12777-2008 and EJMA. Beijing Chaoda Bellows Manufacture Co. Ltd is a professional manufactory, all products have been widely applied in Defense industry�Metallurgical steel industry�Petrochemical industry�Thermal power�Gas�HVAC�Civic building�etc. Meanwhile, Beijing Chaoda Bellows Manufacture Co. Ltd has exported a quarter of its products to world market, including HK�Mongolia�Korea�Japan�Singapore�India�Zambia�Tanzania�Rwanda�Ivory Coast�Algeria and EU. Low price, high quality and extensive experiences, we are your best choice.