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About product and suppliers:
        Alibaba.com offers 1,151 slate chalk products. About 1% of these are chalk. 

A wide variety of slate chalk options are available to you, such as white, color. You can also choose from free samples, paid samples. 

There are 1,151 slate chalk suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of slate chalk respectively. 

Slate chalk products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 70 with BSCI, 64 with ISO9001, and 50 with Other certification.