Gongyi Yulin Welding Material Co. Ltd. is a professional manufacturer in R&D, production of the sintered flux in automatic submerged-arc welding which is belonging to the provincial high-tech enterprises. It has a number of senior engineer research team. After years of innovation and development, Gongyi Yulin Welding Material Co. Ltd. owns five domestic advanced production lines currently. The annual production capacity of 25,000 tons. Equipped with the strong technical force and the complete detection means.