Seppeler Ocynkownia Śląsk plants are a part of the German Seppeler Group, whose origins go back to 1919. The Seppeler Group has stood for quality, durability and innovation for more than a century. We are a family of companies that together create a new quality and standards in hot-dip galvanizing and corrosion protection for steel. Read about our history better and the values that guide our business decisions.