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About product and suppliers:
        Alibaba.com offers 1,305 slate chalk products. About 26% of these are blackboard, 4% are whiteboard, and 2% are slate. 

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

There are 1,305 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 South America. 

You can ensure product safety by selecting from certified suppliers, including 98 with ISO9001, 70 with BSCI, and 53 with FSC certification.