. Non-metallic construction materials and products for construction, maintenance, repair and renovation of buildings, engineering works and of all public works, namely, concrete tiles, mortar for building, concrete and cement pilings, concrete and cement bridging structures, non-metal utility poles and posts, concrete sleepers, erosion control fencing and mats for use in construction, erosion control sheeting or fabric for construction use for protection against landslides, non-metal rigid pipes, non-metal frameworks for use in construction, non-metal architectural moldings, non-metal wall linings, non-metal linings for ceilings and tunnels, non-metal coverings for walls, ceilings, and tunnels, facades and non-metal architectural frameworks for reinforcing walls, ceilings, tunnels and bridges, non-metal floor, wall and ceiling panels, non-metal porches for use in construction, non-metal liners for tunnels, non-metal connectors for construction of tunnels, non-metal crowns for construction of tunnels, non-metal frameworks for tunnels, non-metal trellises, non-metal staircases, concrete slabs, wood and concrete beams, wood and concrete purlins, concrete ducts, and connectors for the aforesaid goods; monuments not of metal; cements, concretes and all goods based on cement and concrete, namely, road pavement plates, concrete blocks, hydraulic cement, slates, slate powder, cement mixes, cement slabs, silica cement, alumina cement, concrete and Portland concrete; ready-mixed concretes; special concretes; fiber-reinforced concretes