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Slab Thickness: 40 cm with only 4 props, thicker slabs with additional support. 03. 00 - $190. 00. 15 m, 2. Add to Cart Add to Wish List Compare this Product. Hydraulic Acrow Prop is a prop consisting of two telescoping steel cylinders that are extended by hydraulic pressure that may be provided by a hand-operated pump built into the prop, applied for supporting the rock face of the roof and the roof down, to ensure a. 6m or 3. 1. Hydraulic Support Prop (2151 products available)Iron Props Construction (550 products available) Portal Frame Scaffold set iron steel frame construction Mobile galvanized frame Double Ladder scaffolding $33. Shan Dong Finer. With its extension lengths from 6. 60m to 0. $11. 00. 5 Hydraulic Acrow Props Suspension Adjustable Support Prop. Uni-Prop International has announced the results of research into the safety implications of adjustable supports commonly known as ‘Acrow’ props. 8 yrs CN Supplier . 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