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About product and suppliers:
        Alibaba.com offers 391 semi automatic twist lock products. About 43% of these are truck trailer, 31% are trailer parts, and 2% are locks. 

A wide variety of semi automatic twist lock options are available to you, such as trailer locks, trailer axles. 

There are 391 semi automatic twist lock suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of semi automatic twist lock respectively. 

Semi automatic twist lock products are most popular in Southeast Asia, Mid East, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 111 with Other, 98 with ISO9001, and 46 with ISO/TS16949 certification.