Hengshui Yitong Metal Products Co., Ltd. is professional corrugated culvert pipe manufacturer, founded in 1998, with 600 employees. After 14 years' development, Hengshui Yitong Metal Products Co., Ltd. became the most comprehensive leading corrugated culvert pipe manufacturer. We have more than 30 patents, and are the member unit which joined the formulation of the state standard. Our main products include 4 types of culvert pipes and irregular-shaped pipes, with the annual capacity of 500,000 meters. Our company obtained ISO9000 and ISO14000 certificates. We can produce American and European standard products according to customers' requirements. As a leading company in corrugated culverts pipes manufacturing, we focus on providing professional service and prompt lead time, and producing high-quality products at competitive price.