Tianjin Zhongchi Industrial Co., Ltd. - originally Tianjin Wen Yun Steel Pipe Co., Ltd., established in 1997.

Our company is a modern enterprise in the North China region that specializes in the production of acoustic testing pipes, grouting pipes, and heat exchanger pipes. We have a team of professional talents dedicated to the development and research of concrete pile foundation ultrasonic testing pipes (acoustic testing pipes), which feature excellent sealing, tensile, and seismic properties. Our products are widely used in high-speed rail, expressways, high-rise buildings, cross-sea and cross-river bridges, as well as steel structure mechanical supports and pipelines. We have established long-term and excellent cooperative relationships with various bridge and road companies, as well as foundation engineering companies, and have received widespread praise.
Zhi Chi Ren is committed to customer focus, continuously meeting user needs. By constantly innovating technology and introducing advanced technologies and equipment from home and abroad, leveraging the industrial advantages of the North China Steel Base and convenient sea and land transportation conditions, we truly ensure quality excellence, competitive pricing, timely delivery, and comprehensive after-sales service for our customers!