please allow me to introduce our Chunlan group, which may help you to know more about our corporation. Chunlan group is one of 50 largest companies in China, which has specialized in the line of air conditioner for more than 30 years. Our air conditioners have owned many certifications, include: CE, SASO, TUV, UL, CB, ISO9001:2000, ISO14001:1996, and so on. So please rest assure that our air conditioner quality is excellent. We sincerely hope to cooperate with your esteemed company, with mutually benefit.