Products used as pipe materials to connect offshore vessels and structures are continuously exposed to seawater, requiring excellent corrosion resistance. Hwashin Bolt Industry applies specialized coating treatments to its products to ensure superior corrosion resistance and durability in harsh marine environments. We manufacture structural products such as STUD BOLT, NUT, WASHER, and U-BOLT, and supply them to many global major companies in the OIL & GAS industry worldwide.