Api 5dp drill pipe for well drilling / mining Specification 1) od: 2 7/8", 3 1/2", 4", 4 1/2", 5" 5-1/2" 2) steel grade: e75, x95, g105, s135 3) type of end finish: eu-external upset, ieu-internal & external upset 4) all drill pipe are made according to api 5d 5) we can provide in many conditions, with or without hard banding (arnco100, arnco300, tungsten carbide etc). Dth drill pipe