... 1/2" to 24"Welded:from 24" to 96"( or as customer requirements)degree22.5 deg, 30deg,45 deg,90 ... .5D, 3D,4D,5D,6D,7D-40D.thicknessSCH10,SCH20,SCH30,STD SCH40,SCH60, XS, SCH80., SCH100,SCH120, SCH140, SCH160, ... 2008 ,ISO 14001 OHSAS18001 , API ,etcpackingin wooden cases, pallets,or as for clients'requirementsapplicationPetroleum, chemical, machinery, electric power,shipbuilding, papermaking ...