Categoría anterior : 6810 - Manufacturas de cemento, hormigón o piedra artificial, incluso armadas.
| Nombre de la compañía * | Ciudad / Ciudad-Estado | País |
|---|---|---|
| C************************************* | Vietnam | Vietnam |
| A****************************** | California | Estados Unidos de América |
| M********************** | Philippines | Filipinas |
| B************************** | Panama | Panamá |
| 1*********************** | . | Estados Unidos de América |
| I***************************** | Monterrey-Nuevo Leon | México |
| P******************** | United States | Estados Unidos de América |
| N******** | United Arab Emirates | Emiratos Árabes Unidos |
| M******************** | Congo | Congo |
| T********************************* | Ecuador | Ecuador |
| F***************************** | Distrito Federal | México |
| I******************************************* | Philippines | Filipinas |
| O******************** | Wales | Reino Unido |
| A******************* | South Dakota | Estados Unidos de América |
| T******************************* | Sri Lanka | Sri Lanka |
| Y****************************** | Philippines | Filipinas |
| G********************************* | CANADA | Estados Unidos de América |
| C***************************** | Vietnam | Vietnam |
| I*********************************************** | Angola | Angola |
| F********* | Angola | Angola |
| D******** | Austria | Austria |
| H**************************** | Canada | Canadá |
| S********* | Canada | Canadá |
| Y************** | Morocco | Marruecos |
| О*************** | Pskov | Federación Rusa |
| Т*********************** | Ukraine | Ucrania |
| C******** | Maghera | Reino Unido |
| W******************* | California | Estados Unidos de América |
| R*********************** | United States | Estados Unidos de América |
