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About product and suppliers:
        Alibaba.com offers 1,279 solid screw jack products. About 28% of these are ladder & scaffolding parts, 26% are speed reducers, and 26% are scaffoldings. 

A wide variety of solid screw jack options are available to you, such as worm, bevel / miter, and helical. You can also choose from scaffolding planks, scaffolding props, and scaffolding frames. As well as from 11-20t, 1-10t, and >50t. And whether solid screw jack is free samples, or paid samples. 

There are 1,279 solid screw jack suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of solid screw jack respectively. 

Solid screw jack products are most popular in Southeast Asia, North America, and Oceania. 

You can ensure product safety by selecting from certified suppliers, including 436 with ISO9001, 75 with Other, and 6 with OHSAS18001 certification.