航大橡膠密封件（東莞）有限公司，下設兩家分公司，公司聚焦嚴苛工況密封領域，深耕核電、航空等高端裝備配套市場，以高性能特種橡膠密封件國產化作為核心發展方向，為各領域客戶提供穩定可靠、符合嚴苛標準的密封產品與定製化技術服務。

  公司主營核電 O 型圈、耐輻射 O 型圈、耐輻照密封圈、核電耐輻射橡膠 O 型圈等特種密封製品，針對核輻射環境、等極端工況做專項材料配方與結構開發。耐輻照系列密封圈選用特種橡膠與高分子基材，經過材料改性優化，在高能射線長期輻照環境下，依舊可以保持良好的彈性、壓縮永久變形性能，不易出現硬化、開裂、滲漏失效等問題，滿足核電設備、機載裝備、輻射檢測儀器等場景的密封使用要求。產品覆蓋靜密封、低速動密封等多種應用形式，支持標準件批量生產，也可承接非標尺寸、特殊截面密封件定製打樣。

  航大橡膠密封件（東莞）有限公司將持續加大特種耐輻照密封材料研發投入，不斷完善生產工藝與檢測能力，持續叠代耐輻射 O 型圈、耐輻照密封圈等核心產品。我們將持續深耕核電特種密封賽道，堅持技術創新，不斷提升產品性能，助力高端裝備特種密封件國產化替代。以可靠的密封產品、完善的技術服務，與行業合作夥伴攜手，共同保障高端裝備安全穩定運行，助力國內密封產業高質量發展。

  Hangda Rubber Seals (Dongguan) Co., Ltd. has two branches. The company focuses on sealing solutions for harsh working conditions and deeply engages in the supporting market of high-end equipment such as nuclear power and aviation. Taking the localization of high-performance special rubber seals as its core development direction, we provide customers from various industries with reliable sealing products and customized technical services that meet stringent standards.

  The company mainly supplies nuclear power O-rings, radiation-resistant O-rings, radiation-resistant sealing rings and nuclear power radiation-resistant rubber O-rings and other special sealing products. We develop dedicated material formulas and structures for extreme working conditions including nuclear radiation environments. Manufactured with special rubber and polymer base materials via material modification optimization, our radiation-resistant sealing series maintains favorable elasticity and compression set performance under long-term exposure to high-energy radiation. The products resist hardening, cracking, leakage and failure, meeting sealing requirements for nuclear power equipment, airborne equipment, radiation testing instruments and other scenarios. Our products cover static sealing and low-speed dynamic sealing. We support mass production of standard parts, as well as custom sampling of non-standard size and special cross-section sealing rings.

  Hangda Rubber Seals (Dongguan) Co., Ltd. will continue to increase investment in the research and development of special radiation-resistant sealing materials, continuously improve production processes and testing capabilities, and iterate core products including radiation-resistant O-rings and radiation-resistant sealing rings. We will further delve into the special sealing track for nuclear power, adhere to technological innovation and continuously improve product performance to boost the localization substitution of special seals for high-end equipment. With dependable sealing products and comprehensive technical services, we work hand in hand with industry partners to ensure the safe and stable operation of high-end equipment and facilitate the high-quality development of China’s sealing industry.