The theoretical calculation of reinforcement is: radius times radius times length times specific gravity (7.8g/cm3). For example, for a steel bar with a diameter of 20mm, at first, the meter and millimeter Hua Song cm is 24,492g, which is 24.492kg. ..

Steel: Steel has a wide range of uses. According to the different cross-sectional shapes, steel products are generally divided into four categories: profiles, plates, pipes and metal products. Steel is a material with certain shape, size and properties, which is made of ingot, billet or steel through pressure processing. Most steel products are processed by pressure, and the pressure will cause plastic deformation of the processed steel products (billets, ingots, etc.). ). According to the different processing temperatures of steel, it can be divided into cold working and hot working.