1??? Applicable to connection at locations when drill platform,semi-submersible drilling vessel or drilling vessel movesrelatively and the installation dimensions of the drill rigsubsequently change, and to delivery of oil, gas, mud and otherhigh pressure media.
2??? Applicable standard: API Spec 16C
SY/T5323-2004.
3??? The product features resistance to high pressure, thermalinsulation, anti-flaming and fire resistance as well as inner wallwith high abrasion resistance.