API Standard Drill Pipe

We are offering api standard drill pipe. our main products is seamless steel pipe,drill pipe,tubing and casing 1.top 100 steel companies in china 2.china's top 500 private enterprises 3.certificate:iso9001,iso14001,api-5ct,api-5dp,api-5l,ce and so on . 1) drill pipe od: 2 78", 3 12", 4", 4 12", 5" 5-12" 2) steel grade: e75, g105, s135 3) type of end finish: eu-external upset, ieu-internal & external upset 4) all drill rod are made according to api 5d standard 5) we can provide in many conditions, with or without hard banding (arnco100xt, arnco300xt, tungsten carbide etc).