OD48mm Adjustable Universal Screw Jack Made By High Strength Steel Structure For Shoring System Frame Scaffolding With Forged Heavy Duty Jack Nut and Dilled Hole to Connect with Socket Base Plate(Spigot Base Plate), Shoring U Head In Installations With Main Vertical Shoring Frames, Cross Braces, Coupling Pin and Walking Board. Safety is Life of Scaffolding Manufacturer, Tianjin Wellmade Scaffold Controls Scaffolding Quality By Strict Management System and Own Independent Testing Throughout Full Production Processes On 1) Raw Materials Steel Testing 2) Welding Line Testing 3) Loading Capacity Testing 4) Scaffold Elements Assembly Inspection With 50,000m2 Scaffolding and Pipe Rolling Production Area,Strict Quality Controlling and Management System, Tianjin Wellmade Scaffold Awards Good Reputation on Safety Scaffolding Products Among Clients from 49 Countries.