Suzhou Rainbow Environmental Equipment Co., Ltd. Established in 1993, is a professional factory of chimneys, located in the new and high technique development zone, which was most energy city in China, we are the pioneer for chimney in China. And specialize in high temperature and air steel pipe's design and proceed. After many years practice: Research and development, produce and sale the prefabricated stainless steel chimney. We are the deserved leaders in this business.