Beijing Zhengdayinguang Science & Technology Co., Ltd.(BZST) and Beijing Zhengdayinguang Foundry Co., Ltd.(BZF) with the BZST as chief shareholder are the limited liability companies and invested based on modern enterprise norms by 30 natural...

Beijing Zhengdayinguang Science & Technology Co., Ltd.(BZST) and Beijing Zhengdayinguang Foundry Co., Ltd.(BZF) with the BZST as chief shareholder are the limited liability companies and invested based on modern enterprise norms by 30 natural persons and the Chinese Academy of Agricultural Mechanization Sciences (CAAMS), a central government subordinated large-size science and technology enterprise. BZST and BZF are state level high-tech enterprises jointly set up by scientists who have brought along their scientific achievements together with the unit they former belonged to. The companies are located in Changping Park, Zhongguancun Scientific and Technology Compound Area, Beijing. These companies have strong technical force, of that 38% are research and development engineers including 9 professors and 13 senior engineers with 6 of above master's degree postgraduate record level.

The main product of BZST is alloy cored wire, a replacement of the traditional Mg-rare earth nodulizer. It has been applied widely in cast iron pipe and nodular graphite cast iron foundry industry and has advantages in the improved working conditions, in the increase of nodularizing grade of castings and in the higher comprehensive performance. Being listed in the Beijing 2001~2002 Torch Planning Program, the Si-Mg alloy cored wire is a product of the country's fist creation and has been applied for approval of the State Creation Patent. The product is being supplied in batches with companies such as Xinxing Ductile Cast Iron Pipe Co., Ltd, CHINA IRON & STEEL ASSOCIATION, Yongtong Ductile Cast Iron Pipe Co., Ltd., and so on. Since 2003 BZST has exported cored wire to Korea, Indonesia, Taiwan and so on. In addition, BZST also developed 94% Mg cored wire, Si-Ca cored wire, and cored wires for Vermicularization, desulfurization and inoculation.

The main product of BZF is ductile cast iron fittings. The fittings have been produced out of a scientific and technical achievement of a research project named "A study of the Production Technique and Processing Equipment for Producing Ductile Cast Iron fittings by Vacuum Lost Foam Process" borne by CAAMS. The achievement won the First Prize of Scientific Progress of State Machine Industry Building in 1999 and registered in the State Invention Patent. The BZF ductile cast iron fittings are in accordance in performance with the requirement of the ISO2531-1998 (E) and EN545, and have reached an advanced international level, which have been exported to Poland, UAE and Saudi Arabia. Besides, BZF is able to produce a kind of coating for lost foam Process, which is used in the production of gray iron, ductile iron and cast-steel. It is Better resistant to high temperature, sand and aeration. To meet the needs of clients, BZF could also produce bimetal pipe sheets and bends and spigots ranging from DN80 to DN900. For bends, they are offered of random radius or radians. It has been discovered now for none in the piping system in our country before. Our company is an operating company with import-export operations right.