Steel structural parts are made of high quality steel materials with characteristics of sturdy fabrication and high supporting and then phosphorized and painted .

• 冷却塔的钢结钩件部分选用优质钢材制成，制作坚固平衡，支承强度高，并经过热浸镀锌处理，在湿热条件下，具有较好的防腐、防锈性能。