Rolling mill is an equipment used for the rolling process of the metal and it can complete the entire process of rolling. There're mainly cold rolling mill, hot rolling mill, continuous casting machine, copper aluminium zinc rolling mill, etc. The rolling mill mainly consists of unwinding machine, rolling system, driving system, hydraulic system, control system, roll removal device, etc. According to the product variety, the specifications, requirements for quality and output, select the type and size of the finished or semi-finished rolling mill.It can be equipped with the transport auxiliaries, lifting and other auxiliary equipments. The development trend of the rolling mill is continuous, automated and professional with high quality and low consumption. The types of rolled products are constantly expanding. Some new rolling methods which are suitable for continuous casting and rolling as well as various special structures adapted to new product quality requirements and improving working efficiency are being developed.