Armature carcasses, Clamps manufacturing, Cutting and deformation, Smooth spatial carcasses. Spatial carcasses are made by contact welding method. Spatial carcasses can be up to D = 1200 mm in diameter and L = 1100 mm in square diagonal. Spatial carcasses can be up to 12 m in length. The longitudinal reinforcing rods can be 12-32 mm in diameter and 6.5 to 10 mm roofs are used as a spiral wrapping rod.