What is the use of right angles on board

Cast iron plate bending purposes: for the detection and machining of parts in the fixture. For the test of the workpiece 90 ° angle, inspection of parts in mutually perpendicular surface maintenance equipment, also commonly used in the bench marking. It can be used to test, install, machine tools of vertical checks and can check the verticality of the workpiece on the cast iron plate for not checking verticality between precision machinery and equipment inspection and machine tools. Cast iron plate bending Material: ht200-300 company's existing small curved plate specifications are: 200mm × 300mm, 300mm × 400mm, 400mm × 500mm × 500mm × 500mm, 500mm × 600mm, 500mm × 800mm, 600mm × 900mm, the company's existing Medium curved plate specifications are 1000mm × 750mm, 1000mm × 1200mm, 1000mm × 1500mm, 1500mm × 2000mm, 1500mm × 3000mm, the company has a large curved plate specifications are 1000mm × 2000mm, 2000mm × 3000mm, 2000mm × 4000mm, Note : Other specifications can be customized.