Suzhou Rainbow Huading Chimney Manufacturing Co., Ltd. is a professional firm of chimneys, and we own many patents. Our company owns a workshop area of 20,000 square meters, with a production capacity of 30,000 sets per month. Our products have a big market share and a scientific and technological position. During production, we use TED and laser-welding technology to produce chimneys for boilers and electrical machines. YBS-Y prefabricated stainless steel chimneys are using the leading technology which is from America, Germany and England, and combined with our patent. This kind of product is suitable for chimney systems. The production process of YBS-Y prefabricated stainless steel chimneys is strictly conducted according to internationally acknowledged BSI-BS*4076-89, the British Standard. The product quality is steady and reliable. The series of products are YBS-YY, YBS-YF, and YBS-YB. We