Use of Products: The product strictly controlled chemical content and the inclusions. It has characteristics of low percentage of harmful elements and good surface quality. By rational controlling the chemical composition and optimizing rolling process, These product have characteristics of good surface quality,uniform drawing strength within one coil, the drawing and welding properties of the wire rod are guaranteed. It also has characteristics of easy drawing and mould saving when using. It is suitable for the wedling of 700MPa high strenght steel.