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About product and suppliers:
        Alibaba.com offers 1,925 concrete spacer products. About 17% of these are other plastic building materials, 13% are formwork, and 8% are brick making machinery. 

A wide variety of concrete spacer options are available to you, such as free samples, paid samples. 

There are 1,928 concrete spacer suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Spain, and Vietnam, which supply 92%, 1%, and 1% of concrete spacer respectively. 

Concrete spacer products are most popular in North America, Western Europe, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 497 with ISO9001, 370 with Other, and 70 with ISO14001 certification.