冷轧扭钢筋是一种冲加工变形钢筋，它是用普通低碳钢热轧圆盘条经专用设备冷轧扭机冷轧和冷扭连续加工而成的螺旋形冷强化钢筋。与盘条母材相比，抗拉强度大大提高，与混凝土握裹力强，钢筋制作和绑扎都很方便，一般可节约钢材30％左右。1989年前，邢台市主要应用于预制空心板 Cold-rolled and twisted steel bar is a type of punched and deformed steel bar. It is a spiral cold-formed reinforced bar that is made by cold rolling and cold twisting of ordinary cold-rolled steel wire strips made of ordinary low carbon steel. Compared with the base metal of the wire rod, the tensile strength is greatly improved, and the strength of gripping with the concrete is strong, and the production and binding of the reinforcing steel are very convenient. Generally, about 30% of the steel can be saved. Before 1989, Xingtai City was mainly used for prefabricated hollow slabs