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About product and suppliers:
        Alibaba.com offers 831 post coupler products. About 17% of these are metal building materials, 2% are ladder & scaffolding parts, and 1% are pipe fittings. 

A wide variety of post coupler options are available to you, such as steel, stainless steel, and carbon steel. You can also choose from cap, union. As well as from forged, casting. And whether post coupler is free samples, or paid samples. 

There are 831 post coupler suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of post coupler respectively. 

Post coupler products are most popular in North America, Domestic Market, and Oceania. 

You can ensure product safety by selecting from certified suppliers, including 300 with ISO9001, 75 with Other, and 72 with ISO14001 certification.