Stainless steel or carbon steel distillation tower, recovery tower and cracking tower with various specifications are provided, which include packing tower, plate tower and floating valve tower. These products are applicable to gas-gas, liquid-liquid, and gas-liquid convective heat transfer, in addition to the steam condensing and liquid evaporation, product distillation and separation. These towers are widely used in the industries of petrochemicals, pharmaceuticals, fine chemicals, spices, dyes and foodstuff, and can be designed upon customers' requirements.It was once used by Guangxi Wuchuan Rosin Holdings Co., Ltd. for the project of manufacturing 500 metric tons of linalool annually (Second National Science-Technology Progress Prize), with main tower diameter of 2,400mm, and height of 58,000mm.