pipe cap 1.Size:Seamless -1/2-24 Welded-1/2- ... method:butt-welded, socket, thread 3.Made under ISO9001-2000 pipe cap1.Size: Seamless Caps:1/2-24 Welded Caps:1 ... /2-482.Schedules: SCH20,STD,SCH40,SCH80,SCH1603.Kind:Butt Welding Caps,Seamless Caps, Forged Caps4.Material:ASTM A234WPS,ST37, Carbon ... ,chemical,architechtural,transportation7.Package:Wooden cases, as the customers' request pipe cap