... :from 1/2" to 24" ,Welded:from 24" to 96"( or as customer requirements)Angle -- 22.5 deg, 30deg,45 deg ... 46,WPHY 42, etc .Qualification-- API ,CE ,ISOPacking-- in wooden cases or as your requirementApplication--Petroleum, chemical, machinery, electric power, shipbuilding, papermaking ...