I am a investor from the United States Of America. I would like to purchase 15,000 used catalytic converters. The converters must have good cores intact and untampered with.I would like to know what sizes you have? What % of the load will be large, meduim, or small converters? Would you be able to provide me a sample core if i need it?Do you have the ability to ship internationally? I would like a quote on 15,000 converters plus shipping to the U.S.A. I look forward to you reply.Country:USA