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About product and suppliers:
        Alibaba.com offers 731 extension wrench products. About 42% of these are wrench, 36% are hand tool sets, and 1% are electric wrench. 

A wide variety of extension wrench options are available to you, such as socket wrench, adjustable spanner, and hex key. You can also choose from carbon steel, alloy, and stainless steel. As well as from free samples, paid samples. 

There are 731 extension wrench suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of extension wrench respectively. 

Extension wrench products are most popular in Western Europe, Eastern Europe, and North America. 

You can ensure product safety by selecting from certified suppliers, including 175 with ISO9001, 50 with Other, and 38 with ISO14001 certification.