API 7K——Rotary Drilling And Vibrator Hose
Application：flexible connection between the upper end of the standpipe and the top drive/swivel and between the pump and the lower end of the standpipe for pumping mud at high pressure in oil drilling and exploration work.
Inner Tube：NR&SBR sythentic rubber/HNBR/UPE/PTFE
Reinforcement：many layers of high tensile super flexible spiral steel wire or steel cable
Tube Type：full flow
Outer Layer：abrasion and weather resistant synthetic rubber
Connectors：ntegral union or integral flange