Super Pure Oxygen-Free Copper ( Cu OF SP ),  IACS 104 – 105 % Cu OF 99.9995-99.9999+%  ASTM B170   Dear Sir / Madam,   We have developed our own technology allowing us to predict, produce and supervise a chemical compound of purity 5N5 and above according to ASTM B170 (USA) and GOST 859-2001 (Russia). We have received steady results and have produced experimental product of the highest quality:   Super Pure Oxygen-Free Copper in ingots. Сharacteristics : o        Chemical composition - 99,9995 – 99,99999+ % (ASTM B170 and GOST 859-2001) o        Electrical conductivity - 104 – 105 % IACS o        RRR > 1500-2000-... o        Similar to monocrystal  Shape, size and weight of an ingot  :  o        ingots are close to cylinder in shape o        diameter of 85-95 mm o        height/length of 100-150 mm (typical ~120-130 mm) o        weight ~6000-8000 gram  (typical ~6500-7000 gram) The product is unique in its characteristics and is probably the best or one of the best in the world in terms of its chemical purity and physical characteristics (electrical and thermal conductivity). It is close to pure theoretical copper. We can offer up to 50 kg of our product at this moment and then discuss future deliveries.  If our product is not in your area of interest, but your partners may be interested, we would appreciate it if you redirect this email to them. If you are interested in our product, we are looking forward to cooperation. More detailed information on our product and about our company can be found on our website () or in other documents.   With thanks and appreciation,