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About product and suppliers:
        Alibaba.com offers 15,018 operating block products. About 47% of these are brick making machinery, 1% are blocks, and 1% are wooden toys. 

A wide variety of operating block options are available to you, such as block set, hollow block making machine, and interlock block making machine. You can also choose from plastic, foam, and wood. As well as from haccp, ce, and iso. And whether operating block is construction toy, diy toy, or educational toy. 

There are 15,018 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 Africa, Southeast Asia, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 3,677 with ISO9001, 1,829 with Other, and 463 with ISO/TS16949 certification.