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1. Applicable to connection at locations when drill platform, semi-submersible drilling vessel or drilling vessel moves relatively and the installations of the drill rig subsequently change and to delivery of oil, gas, mud and other high pressure media (including mainly relief line blowout control line and choke & kill line).
2. Applicable standard: API Spec 16C & SY/T5323-2004.
3. The product features resistance to high pressure, thermal insulation, anti-flaming and fire resistance as inner wall with high abrasion resistance.
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