Manufactured through a series of automated processes including forming, high-frequency induction welding, diameter reduction, annealing under protective gas, galvanizing, and copper plating, our products utilize high-quality cold-rolled welded steel strip. The welding quality of our products is excellent, with bright and clean inner and outer surfaces of the welded pipes. We possess a complete set of testing instruments and a well-established quality system, ensuring strong corrosion resistance and salt spray resistance for up to 48 hours (hot-dip galvanized pipes can withstand salt spray tests for up to 150 hours). Please refer to the following product dimensions for reference; for other size requirements, specific communication is needed.
