... 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 ... resistant,abrasion-resistant,acid&alkali resistantReinforcement:2-6 layers of high strength steel wire spiralCover: featuring oil-resistant,Low temperature, ...