Copper tubes &pipes are strictly implementing the standard specification of ASTM B111/ASTM SB111 Material grades available:C12200 ,C44300,C44400,C68700,C70400,C70600,C71500,C71640 Size range:OD6.0-323.9MM WT 0.5-50.0 LENGTH Maximum 15000mm Delivery condition :Bright Annealed U-bend tubes are available.