[INQ. NO. 2505M011] Hansung Tech Co., Ltd. has specialized in producing and exporting oil seals, o-rings, and cylinder packings since 1978. It has grown into a leading company in the domestic sealing industry, commanding a high share of the nation’s MRO market.
Hansung Tech’s proven excellence in quality allows the company to supply its products to Korea’s leading steel manufacturers without inspection.

With more than 57,000 molds, Hansung Tech can reduce the burden of mold costs and guarantee fast delivery. In addition, it can manufacture customized special and large seals according to the customers’ needs.
Hansung Tech is committed to managing environmental data in line with the carbon-neutral era. In June 2024, it obtained the Environmental Product Declaration (EPD) certification for its o-ring and v-packing product lines, and in December 2024, it acquired the Carbon Footprint certification for its oil seal, o-ring, and v-packing product lines.

Hansung Tech has the largest number of molds in the sealing industry (57,000 pieces). It is building specialized facilities for small-quantity production of various types. It has a wide range of material portfolios applicable to various industries. It can provide everything from material mixing to mixing in-house (quickly responding to customers’ specific specification requests).
Hansung Tech provides total sealing solutions through on-site diagnoses, and has research and development capabilities that lead the latest technology trends and market demands.
Hansung Tech’s main products are industrial rubber packings (oil seals, o-rings, cylinder packing, etc.) and its main export countries are Vietnam, China, Japan, and Singapore. Its cylinder packings are actively used in such various areas as marine and aerospace, energy, construction and heavy equipment, food and pharmaceuticals, and robotics.
“We have consistently strived to deliver the best sealing solutions for the past 50 years. As we look to the future, we are committed to enhancing customer value by integrating customized services into our solutions for the next 50 years,” remarked the company’s representative.


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