DN-2.5 (spot welding total thickness 0.06~1mm)DN-5(spot welding total thickness 0.06~1.6mm)DN-10(spot welding total thickness 0.1~2.5mm)DN-16(spot welding total thickness 0.2~3.2mm)8*50mm chrome copper head (two price) 10*60mm chrome copper head (two price)