Used for manufacturing coiled tube furnaces, maximum medium temperature up to 660°C; Bend angle 90°, 180°, bend radius: 0.8-1.5D, outer diameter of bends: 57-273 mm, wall thickness 6-11 mm. Material options: steel 20, 16GS, 09G2S, 15Kh5M, 12Kh8VF, 08Kh18N10T, 12Kh18N10T.
