Well control equipment: BOP We supply Chinese made Cameron Type U ram BOP, Shaffer type annualar BOP and ram BOP. Bore size: 7-1/16", 9", 11", 13-5/8", etc. working pressure: 3000psi, 5000psi, 10000psi and 15000psi. All consumable spare parts are interchangeable with Cameron or Shaffer OEM parts.