We are a professional manufacturer of 8 categories of carbon steel pipes(13.7-610mm), such as seamless pipes for the use in structure, fluid conveyance, low-and medium- pressure boilers and so on. Our products have passed the ISO9001:2000international quality system certification and the API certification of the USA. Our "yilin"brand seamless pipes is evaluated as a high-quality product in Hebei Province and are always enjoying a good reputation in the world market.