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About product and suppliers:
        Alibaba.com offers 985,263 layer products. About 1% of these are animal cages, 1% are scaffoldings. 

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

There are 981,861 layer suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Pakistan, and India, which supply 97%, 1%, and 1% of layer respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 208,723 with ISO9001, 139,998 with Other, and 24,009 with ISO14001 certification.