The products of Jiulong valve are used in large-scale international projects such as petroleum, chemical, oil refining, coal chemical, electric power, metallurgy, natural gas, deep-sea exploitation, LNG, natural gas long-distance pipeline and weighing station
       Major foreign projects include: the wellhead surface facilities of 1 / 2 / 4 and 6 zones of Fula oil field in Sudan undertaken by China Petroleum Engineering and Construction Corporation; the zanazuo oil and gas processing plant and natural gas pipeline in Kazakhstan; the central station and oil gathering station of 3 / 7 zones of merut oil field in Sudan undertaken by Naier company in Malaysia; and the offshore platform oil and gas project undertaken by Petronas in Turkmenistan 0psi ultra-high pressure ball valve, ultra-low temperature hard seal ball valve supplied by BP oil company in offshore oil and gas project in Vietnam, jiha oil and gas treatment plant project in Syria, new collection center project of Kuwait Petroleum and petrochemical, shell standard petroleum and petrochemical development project in Abu Dhabi, and Youdun gas field project in Southern Turkmenistan All welded ball valves in Iraq ahdeb project undertaken by oasis oil company, large diameter all welded ball valves in hafaya oilfield and pipeline project developed by Iraq branch of CNPC, mishang oilfield ball valves developed by Iraq branch of CNOOC and all welded ball valves in safety improvement project of Hongjing line of Sinopec, The project of 5 billion cubic meters natural gas treatment plant in block a of Turkmen bagdeley and South yolotan 10 billion cubic meters natural gas treatment plant in 2011, which were contracted by Chuanqing Drilling Engineering Co., Ltd. in 2008, 625 surfacing and 825 pure material high sulfur resistant ball valve were used in South yolotan natural gas treatment plant, gathering and transportation project and expansion project in Turkmenistan; One belt, one road, China Petroleum, Abu Dhabi petrochemical Babu refining integration, Shell standard comprehensive facilities project, PetroChina Iraq surface chemical project.

       Major domestic projects include: sulfur resistant / high sulfur resistant ball valve (625 / 825 surfacing and pure material) which is widely used in phase I / II project of Suining 12 million purification plant of PetroChina Southwest Oil and gas field company, 6 billion m3 / a development surface project of Longwangmiao formation gas reservoir in Moxi block of Anyue gas field, phase I development surface gathering and transportation project of Dengsi gas reservoir in Gaomo block of Anyue gas field, and gathering and transportation project of each well station in Gaomo phase II Gas transmission project, Anyue gas field Gaomo phase II purification plant project, shuangyushi block Qixia Formation gas reservoir test production surface project, Jiulongshan Permian / Triassic surface gathering project, South 1 gas gathering station of Gaoshiti block Gaoshi 1 well gas gathering station gathering pipeline project, Qilu Petrochemical Shengli Refinery Expansion Project, Xinshang ethylene project, Shenhua Group coal liquefaction pilot base of Luoyang Petrochemical Engineering Company Direct liquefaction 6 t / D test plant project; Sinopec pipeline storage and transportation branch Yizheng Changling pipeline, Rizhao Yizheng pipeline, Yizheng / Baishawan / Daxie Island and other large oil depots; Xinjiang Tuha methanol plant 200000 t new project; Shanghai Pudong natural gas long distance pipeline and booster station; Nanhai oil field offshore platform, Shengli Oil field combined station, ultra-low temperature compressor station, ultra-low temperature polymer injection station , offshore platform and submarine pipeline; Gubei liquefied oil and gas power plant; Qiudong large-scale low-temperature compressor station in Xinjiang; PetroChina fuel oil Huangdao large-scale oil depot; Beijing Lianhe gas large-scale booster station and pipe network project; ultra low temperature ball valve is widely used in PetroChina Changqing Shanggu natural gas treatment plant project, Shaanxi Yangling LNG emergency peak shaving reserve distribution center project, Shanxi Branch project Large diameter and buried all welded ball valves are provided for Datong liquefaction peak shaving reserve distribution center project of Natural Gas Co., Ltd., Shanxi Xiangyuan liquefaction peak shaving reserve distribution center project, Dushanzi Petrochemical refining and chemical complex project, Sinopec Bluestar chemical 200000 t / a methanol project, Evonik silicone surfactant project, Changning shale gas field export pressurization project, etc.