Changzhou Dengfeng Road and Bridge Engineering Materials Co., Ltd.is a technology-based professional enterprise who produces bridge engineering materials for a long term, and is located in Changzhou known as “Town of Environmental Protection” in China. Our products mainly include pre-stressed plastic corrugated pipes, metal corrugated pipes, metal corrugated pipe coiling machines and ultrasonic testing pipes for pile foundations. Putting quality and credit in the first place, our company has won the recognition and trust of the market, and established a wide and stable cooperative relationship with industry insiders all over China, with the products and sales network spreading over all the provinces (cities) and autonomous regions in Mainland China.
 

Ultrasonic testing pipes for pile foundations, which are produced by our company, are the unique reliable system specially applied to ultrasonic testing on the market, and are patented products of our company. Basic concept: ultrasonic testing pipes for pile foundations are formed by fastener connection or spiral socket connection and anti-seepage concrete connection after professional molding of steel pipes. The pipe features higher tensile resistance, bending resistance, compression strength and sealing performance. Meanwhile, we produce pre-stressed corrugated pipes and processing equipment, and export them abroad, becoming a pre-stressed pipe coiling machine brand designated by China Railway Group, China Communications Construction and other large units.
 

With strong support of Ministry of Railways, Ministry of Communications and other related departments, our products have been successively and widely applied to nearly one hundred railways and expressways such as Beijing-Shanghai, Beijing-Zhuhai, Shanghai-Nanjing, Beijing-Fuzhou, Shanghai-Hangzhou, Shanghai Jialiu, Dayun, Wuhan Beltway, Ningbo-Taizhou-Wenzhou, Wuhan Light Rail, Tongqi, HK-Zhuhai-Macao Bridge, Great Western Railway, Nanjing Light Rail, etc., winning consistent good praises from users.
 

In the principle of “Quality-centered, Technology-based, Refined & Pragmatic” and the policy of “Quality First, Credit First”, our company strictly controls the quality. Our company has passed the certification of ISO9001:2000 Quality Management System, won the title of “AAA Credit Contract-honoring & Promise-keeping Unit” and “Jiangsu Market Accepted Famous-brand High-quality Products”, and won S&T Award from Ministry of Construction at the same time.
 

Looking back into the past and looking forward to the future, all the staff of our company are full of lofty sentiments. Mr. Du Huizhong, chairman of the board, is willing to lead all the staff to scale new heights in the new century.