Specialized large-diameter pipe lowered into an open hole and cemented in place. Casing conform to latest version of API Specification 5CT, API Specification 5B and other related standards. Casings are available in standard API configurations with all sizes from 5" to 133/8" in grade H40, J55, N80, L80, C90, P11O and Q125 Technical Performance 1. - High thread bonding strength with good anti- ...