Galvanized 20# Steel Hollow Scaffold Screw Jack
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...height to be adjusted on each frame leg to account for uneven ground below the scaffolding. This particular screw jack fits every style of frame we carry (Safeway, Waco, and Bil-Jax). With various size, its compressive strength is from 85.87KN to 236.1KN....
Cangzhou Weisitai Scaffolding Co., Ltd.
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