Sanlu was one of China 's leading dairy producers . Melamine is commonly used in coatings and laminates , wood adhesives , fabric coatings , ceiling tiles and flame retardants . Some Chinese dairy plants added sodium to milk products to increase protein levels . Ingesting sodium can lead to kidney stones , eye and skin irritation , some fatal . Official : Melamine was found in nearly 70 milk samples from more than 20 countries .
Sanlu was one of China 's leading dairy producers . Some Chinese dairy plants added sodium to milk products to increase protein levels . Ingesting sodium can lead to kidney stones , eye and skin irritation , some fatal . Official : Melamine was found in nearly 70 milk samples from more than 20 countries .