1)API 7K,ISO6807,GOST28618 2)Transport water/oil base mud 3)Inner diameter:38-127mm(1.5-5") 4)Working pressure:11MPa-52MPa Applicability: Commonly used in drilling,cementing, work over service as flexible connection for mud manifold, cement manifold,choke and kill manifold to transport water base mud or oil base mud, washing fluid at high pressure in large volumes.Temperature Range: -20°C~121°C. ...