Libo Copper Strip uses the most advanced continuous conforming technology to produce oxygen free copper strip, for which we received a national patent. Our products feature large roll diameters, long lengths, and superior surface and conductivity. Our minimum thickness is .05 mm, and our maximum width is 250 mm.Oxygen-free copper strip from Libo features high conductivity, excellent welding properties, better elongation, and superior deep-punching characteristics. Our annual production capacity is about 10,000 tons.Copper strip for transformer is used for transformer winding material and connector strip.Our copper strip is produced accroding to ASTM B152 standard.