Title: Beijing Zhengdayinguang Science / Technology Co., Description: is the limited liability company which is invested by a central government enterprise. The main product of our company is alloy cored wire, a replacement of the traditional Mg nodulizer. It has been applied widely in foundry industry. Being listed in the Beijing 2001-2002 torch planning program Tags: Cored wire ductile iron fittings Category: Beijing URL: http://www.zdyg.com.cn