We are offering copper tubes. Level wound coil ( lwc copper tube ) copper tube outer diameter thickness 4.76 mm ( 316") to 22.22 mm ( 78" ) 0.3 mmto 1.00 mm pan cake copper coil copper tube outer diameter thickness 4.76 mm ( 316") to 22.22 mm ( 78" ) 0.4 mm to 1.20 mm