ROUND COPPER TUBE : thickness:10-25mm Dia:90-500mm length:700~1000mm MaterialPhosphorus deoxidized copper,Ag-Cu,CuCrZrChrome platingChromium,nickeland cobalt,Ni-Co+Cr composite coating,(Ni-Te,Ni-Co,Co-Ni)TaperingSinger taper,multi-taper,parabolic taper,,multiple taper and so onWall thickness10~25mm SpecificationRound billetΦ90~500mmSquare billet60*60~450*450mmRectangular billet120*340~365* ...