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About product and suppliers:
        Alibaba.com offers 14,801 operating block products. About 1% of these are blocks, 1% are wooden toys, and 1% are telecom parts. 

A wide variety of operating block options are available to you, such as wood, plastic. You can also choose from construction toy, diy toy, and educational toy. As well as from ce / eu, ce, and haccp. And whether operating block is block, or flat. 

There are 14,801 operating block suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of operating block respectively. 

Operating block products are most popular in Domestic Market, Africa, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 4,075 with ISO9001, 2,012 with Other, and 746 with OHSAS18001 certification.
        
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