Salzgitter Hydraulics Pvt. Ltd. Manufactures Adjustable Telescopic Construction Props/Jacks. Salzgitter Hydraulics Pvt. Ltd. Is an ISO 9001:2000 certified company. The Adjustable Telescopic Construction Props/Jacks provide the ideal and most method of support for a wide variety of applications in general building construction and repair work. The props eliminate the costly labour and time consumed in cutting timber to length, wedging and nailing when used in the vertical as a prop. The prop/jacks are manufactured from high quality steel material with painted finish for long life and are highly resistant to site wear and tear. These Adjustable Telescopic Construction Props/Jacks can be used in very type of building construction or for any type of use where an adjustable load-bearing member is required.