PRODUCT INFORMATION
 Box culverts are the fast, easy solution for applications under roads, railways and runways as drainage culverts, underpasses or service ducts. Precast units mean fast installation with minimal disruption to services and traffic.

STANDARD
 Tan Ha Company produces based on customers’ requests, standards and requirements. With our advanced production lines and modern technology, we ensure that we will meet all of our customers’ requirements, standards and conditions of the construction area.