Modular Type Concrete Box is used for underground walkways, transportation of goods and services. The Concrete Box is made with a tongue and groove and is joined together either with a gasket or a sealing compound to make a leak proof joint. The Concrete Box is available in modular construction and can expand from 1mt X 1mt to 6mt X 6mt. Modular Type Concrete Box is compact in design and rigid in construction.
