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About product and suppliers:
        Alibaba.com offers 640 portoro gold marble products. About 100% of these are marble, 1% are granite. 

A wide variety of portoro gold marble options are available to you, such as cut-to-size, big slab, and gang saw slab. You can also choose from black, white, and brown. As well as from polished, machine-cut. And whether portoro gold marble is dolomite, calcite, or serpentine. 

There are 642 portoro gold marble suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Pakistan, and Italy, which supply 94%, 2%, and 2% of portoro gold marble respectively. 

Portoro gold marble products are most popular in North America, Mid East, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 76 with ISO9001, 39 with Other, and 31 with ISO14001 certification.