1,High value and excellent quality. 2,Professional design and manufacture. 3,Any type and any size. ... SPECIAL VEHICLE COMPANY1.We are the manufacturer. 2.Certificate:ISO 9001-2000, ISO 9002, TS 16949, CCC 3.All kinds of type ... (MM)THICKNESS, 8MMMATERIAL, Q345 CARBON STEELHEIGHT OF THE BEAM, 500MMNUMBERS, 2 SETSMAIN MANUFACTURE TECHNOLOGY USING HIDDEN ARC WELDING TO WELD THE ...