公司创立于2007年，是深耕工业流体控制领域专业技术服务商，主营业务分为两大板块。
凭借先进精密加工工艺与特种高端材料技术，打造高耐压、耐磨、抗腐蚀密封产品，适配各类复杂严苛工业工况，彻底解决设备渗漏、配件寿命不足、工况适配性差等行业痛点问题。
承接标准及非标油缸、气缸个性化定制设计生产，适配不同行业设备参数需求；同时提供缸体修复翻新、精度校准、性能调校全方位服务。依靠成熟流体结构技术，精准还原设备原厂精度，大幅降低企业设备运维成本。
公司始终以技术为核心、品质为根基，服务重工机械、智能制造、新能源、高端装备等多个行业，致力成为流体密封与缸体配套领域值得信赖的长期合作伙伴。
Founded in 2007, DNO is a specialized engineering partner in industrial fluid power, built around two core business areas.
Using advanced CNC machining and high-performance specialty materials, we produce pressure-resistant, wear- and corrosion-resistant seals engineered for demanding industrial environments — solving the leakage, short service life, and poor fit that plague real-world equipment.
We design and build standard and custom cylinders to your exact specifications, and provide end-to-end service including refurbishment, precision calibration, and performance tuning. Backed by proven fluid-power engineering, we restore OEM-level precision and cut your operating and maintenance costs.
Technology-driven and quality-focused, we serve heavy machinery, intelligent manufacturing, new energy, high-end equipment and other sectors, aiming to be your trusted long-term partner in fluid sealing and cylinder solutions.
