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About product and suppliers:
        Alibaba.com offers 6,379 blackboard chalk products. About 45% of these are blackboard, 8% are chalk, and 2% are whiteboard. 

A wide variety of blackboard chalk options are available to you, such as no, yes. You can also choose from free samples, paid samples. 

There are 6,379 blackboard chalk suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of blackboard chalk respectively. 

Blackboard chalk products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 1,028 with ISO9001, 981 with Other, and 463 with BSCI certification.