ZK International Group Co., Ltd., operating through its various subsidiaries, focuses on the design, production, and distribution of steel tubes and fittings. Primarily active in the People's Republic of China, the company manufactures both double-press thin-walled and single-press tubes from stainless steel and carbon steel, alongside their corresponding fittings. Its product range is extensive, featuring carbon and stainless steel strips, various carbon and stainless steel pipes (including light-gauge options), and a comprehensive selection of pipe connectors and fittings.