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About product and suppliers:
        Alibaba.com offers 1,227 spline coupling products. About 39% of these are shaft couplings, 1% are pipe fittings. 

A wide variety of spline coupling options are available to you, such as disc, metal bellows, and gear. You can also choose from steel, aluminium, and stainless steel. As well as from flexible, rigid. And whether spline coupling is standard, or nonstandard. 

There are 1,233 spline coupling suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Japan, and India, which supply 99%, 1%, and 1% of spline coupling respectively. 

Spline coupling products are most popular in North America, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 504 with ISO9001, 199 with Other, and 72 with ISO/TS16949 certification.