Based on the characteristics of the fitness equipment industry, some outdoor large sports and amusement facilities, as well as the main and branch tubes of indoor sports and fitness equipment, as well as the base sheet metal parts of equipment, as well as large outdoor square and round lights in the lighting industry, are generally made of carbon steel. The diameter of the tube is mostly within 165mm, and a small amount is within 310mm. Thin pipes with a wall thickness of less than 3mm and medium thick pipes and plates with a wall thickness of 3-12mm. According to production and efficiency requirements, 1000-12000w fiber lasers can be selected.