... to the weight rate, the coating layer of the hot-dipped galvalume steel plate consists of 55% aluminum, 43.4% zinc and 1 ... resistance and damp heat resistance; the erosion resistance of the hot-dipped galvalume steel plate is 2-6 times higher than that ... , weldability and painting viscosity. What's more, because of its handsome appearance, the steel plate can be put into application without being ...