Coil nails are composed of a group of single nails and welding wires with the same length and equidistant arrangement, and the welding wires are copper-plated iron wires. The nails are at a 15-degree angle to the center vertical. It is suitable for fixing
Low silicon iron can replace some ferrosilicon alloys to deoxidize and increase silicon, increase iron, effectively control the temperature of molten steel, and do not affect the absorption rate of other alloys during use;