1.Standard: api 7-1 2.Material: x95 g105 s135 3.With high quality and steady supply 4.Main custums: usa, canada, middle east Kingwell drill pipe is designed to provide superior technical performance and a service lifetime exceeding most current industry standards.Kingwell drilling products drill pipes are available with: Proprietary oversized minimum internal upset (miu), for better fatigue resistance (where applicable), Longer tool joints, providing a maximum re-cut capability for longer service life, and Higher toughness specification on pipe body, weld and tool joint, providing greater safety margins in extreme drilling conditions. Export packages