Gain Machinery Specializes in the production of stainless steel 304, 316L, duplex stainless steel 2205, stainless iron, alloy copper, aluminum, alloy steel and other materials. The product diameter is 0.5mm-500mm, tolerance can reach 0.005mm, Surface texture can reach 0.02μ. We passed ISO9001 / TS16949 quality management system certification.