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About product and suppliers:
        Alibaba.com offers 1,952 adjustable jack base products. About 46% of these are scaffoldings, 44% are ladder & scaffolding parts, and 1% are metal building materials. 

A wide variety of adjustable jack base options are available to you, such as scaffolding props, scaffolding frames. You can also choose from free samples. 

There are 1,952 adjustable jack base suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of adjustable jack base respectively. 

Adjustable jack base products are most popular in Southeast Asia, South America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 995 with ISO9001, 132 with Other, and 28 with OHSAS18001 certification.