DOTS for Engineering Industries (API certified Oilfield Machine Shop) Proudly registered at EGPC. Certified API 7-1 cert.#1073 for the scope of manufacturing Drilling subs, cross overs, Drill bits, and re-threading of Drill pipes, and Drill collars. Certified API (5CT) Cert#1485 for the scope of Re-threading Casing & Tubing, and Manufacturing of couplings. Certified API (6A) Cert#1430 for the scope of manufacturing Flanges, Risers, Spools & all wellhead and X'mass tree equipment with PSL 3G till 15,000 PSI & sour service condition. In addition to our supplementary products such as manufacturing: Hammer Unions, Testing Drifts, Mud pump spares & pipe fittings. In addition to our quality management system as we're certified API Q1Cert#1712, ISO 9001 , ISO 14001-2015, ISO 45001-2018 Serving the MENA region, Our head office and our machine is located at New Cairo, Egypt .