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About product and suppliers:
        Alibaba.com offers 1,340 ppr reducing coupling products. About 92% of these are pipe fittings, 4% are plastic tubes. 

A wide variety of ppr reducing coupling options are available to you, such as iron, stainless steel, and plastic. You can also choose from coupling, elbow, and tee. As well as from female, welding, and male. And whether ppr reducing coupling is equal, or reducing. 

There are 1,346 ppr reducing coupling suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 99%, 1%, and 1% of ppr reducing coupling respectively. 

Ppr reducing coupling products are most popular in Mid East, Southeast Asia, and North America. 

You can ensure product safety by selecting from certified suppliers, including 639 with ISO9001, 252 with ISO14001, and 150 with Other certification.