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About product and suppliers:
        Alibaba.com offers 1,959 adjustable jack base products. About 46% of these are ladder & scaffolding parts, 45% are scaffoldings. 

A wide variety of adjustable jack base options are available to you, such as scaffolding frames, scaffolding props, and scaffolding couplers. You can also choose from steel, metal, and pe. As well as from free samples. 

There are 1,959 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 Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 1,064 with ISO9001, 107 with Other, and 52 with OHSAS18001 certification.