2025-03-02 2023 Obtained a wax inlet pipe ZL 2023 2 2128873.8 for wax water sedimentation tank - Utility model patent certificate.
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2025-03-02 2022 Obtained a combustion Control System 2022224488407- Utility Model Patent Certificate.
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2025-03-02 2019 Obtained a direct wax injection system 2019213596779 utility model patent certificate.
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2025-03-02 2014 Obtained a floating sand machine 2014108311102- Invention new patent certificate.
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2025-03-02 Obtained a wax inlet tube for wax water precipitation barrel in 2023 2 2128873.8-Universal Model Patent Certificate
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2025-03-02 Obtained the combustion control system 2022224488407-Utility Model Patent Certificate in 2022
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