¡á width : 520, 450, 300 and 270 mm¡á center : free ¡á material : CR steel, stainless stee ¡á feature.(Head Pipe Type Radiator) 1. one piece tube header pipe 2. outside Co2 welding 3. suitable for power and distribution Transformer. 4. pressed furrows on radiating panel has good heat dissipate and allow to save transformer oil than conventional design.