ZHONGAO(CHINA) IMPORT＆EXPORT LIMITED is an enterprise specializing in Zinc ingots,Aluminum ingots,Tin ingots,Copper ingots,Magnesium ingots,Etc. Located in China, our company occupies area of 42000 square kilometers and has modern workshop of 30000 square kilometres, Our total investment has reached over RMB 100 million. We also have over 300 employees including 18 engineers with middle or high technical title.Our company has great manufacturing capacity……