• 2016~Now

    Square Bellows Release

    Diaphragm for hydrogen vehicle sensor

    Phosphor bronze Bellows for automotive compressor valves and sensors

    Patent registration for pipe connection assembly can detect gas leakage and pressure change. No 10-1656426

    Registration of safety cover design for bellows. No. 30-0859378

  • 2011~2015

    Patent registration for multi-layer bellows assembly and manufacturing method. No. 10-1527882

    Established GST Co., Ltd. in China

    Patent registration for Lock-type angle valve. No. 20-0464255

    ISO 14001:2004 Acquisition

  • 1995~2010

    Relocation of Head office

    Contract with Evac as sales representative

    Registry of the corporate subsidiary research institute

    Certified as an Innovative technology company

    Patent registration about plasma welding technology for small size bellows (Patent No. 0490214)

    ISO 9001:2000 Acquisition (DQS Gmbh)

    Award of Prime Minister for new technology

    Development of welded bellows for liquid fuel launch propulsion(KSR-III)

    Patent registration about vacuum valve for toxic gas supply

    Registration as a venture company

    Established GST CO., Ltd.