About product and suppliers:
            1,287 magnesia block products are offered for sale by suppliers on Alibaba.com, of which refractory accounts for 34%, other sports & entertainment products accounts for 1%, and weight lifting accounts for 1%. 

A wide variety of magnesia block options are available to you, 

There are 487 suppliers who sells magnesia block on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of magnesia block supply is 100% respectively.