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About product and suppliers:
        Alibaba.com offers 694 post coupler products. About 25% of these are metal building materials, 3% are ladder & scaffolding parts, and 2% are steel rebars. 

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

There are 694 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 Domestic Market, South Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 382 with ISO9001, 80 with ISO14001, and 69 with Other certification.