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About product and suppliers:
        Alibaba.com offers 4,000 hdpe coupling products. About 64% of these are pipe fittings, 1% are shaft couplings. 

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

There are 4,000 hdpe coupling suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of hdpe coupling respectively. 

Hdpe coupling products are most popular in Southeast Asia, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 2,368 with ISO9001, 654 with ISO14001, and 510 with OHSAS18001 certification.