Z28-400型滾絲機主要用于滾壓各種精密外螺紋、高強度標準件，包括普通螺紋，梯形螺紋及模數螺紋。適用滾壓的材料：延伸率大于10%，抗拉強度小于100kgf/mm²的各種碳素鋼、合金鋼及有色金屬。

Z28-400 wire rolling machine is mainly used for rolling a variety of precision external threads, high-strength standard parts, including ordinary threads, trapezoidal threads and modulus threads. Suitable for rolling materials: elongation greater than 10%, tensile strength less than 100kgf/mm² of a variety of carbon steel, alloy steel and non-ferrous metals.