U-steel support is a kind of passive support of coal mine support, the tensile strength and the compressive strength is higher, it also has good toughness properties Material: 20Mnk Size: 25U Model: 25U Section Steel Height: 110mm Thickness: 17mm Weight: 24.76kg/m Production: 103300T Surface treatment acid pickling Treatment Hot-rolled Section form U Type:Heavy Section Steel Smelt quality High quality specification: single beam, double beam, treble beam, grade beam
