About product and suppliers:
            1,319 nano calcium products are offered for sale by suppliers on Alibaba.com, of which carbonate accounts for 21%, pearl powder accounts for 1%, and immune function agents accounts for 1%. 

A wide variety of nano calcium options are available to you, such as industrial grade, agriculture grade, and food grade. 

There are 521 suppliers who sells nano calcium on Alibaba.com, mainly located in Asia. The top countries of suppliers are India, China, and Vietnam, from which the percentage of nano calcium supply is 3%, 84%, and 9% respectively.