PRODUÇÃO DE PRODUTOS QUÍMICOS, MINERAIS, PRODUTOS DE BORRACHA E PLÁSTICOS
CÓDIGO DO PRODUTO (HS 2017)
Cement, concrete or artificial stone; articles (other than prefabricated structural components for building or civil engineering), whether or not reinforced, n.e.c. in heading no. 6810
Bridge concrete-a building material that belongs to the class of heavy concrete and is significantly different from ordinary ready-mixed concrete increased strength and resistance to heavy loads.