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About product and suppliers:
        Alibaba.com offers 655 roofing shingles double layer products. About 18% of these are roof tiles. 

A wide variety of roofing shingles double layer options are available to you, such as plain roof tiles, double roman tiles, and bent tiles. You can also choose from synthetic resin, coloured glaze, and clay. As well as from free samples, paid samples. 

There are 655 roofing shingles double layer suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of roofing shingles double layer respectively. 

Roofing shingles double layer products are most popular in Africa, Southeast Asia, and Oceania. 

You can ensure product safety by selecting from certified suppliers, including 130 with ISO9001, 40 with ISO14001, and 25 with OHSAS18001 certification.