Sound control and acoustic installations, products and equipment, including acoustic louvres, acoustic ceiling panels, acoustic doors, silencers, wall panels, noise traps, sound enclosures, heavy machinery enclosures, acoustic alternators and acoustic partitions;
sound control and acoustic materials
Soil reinforcement mesh and soil stabilization mesh made of plastic;
erosion control plastic mesh, mats and sheeting, not of metal;
plastic building mesh and plastic film for use in civil engineering, for the purposes of drainage, stabilizing inclines, recultivation, plant support, absorption, filtration, separation, stabilization and reinforcement of the soil, for use in connection with road construction, railroad construction, tunnel construction, waterway construction, runway construction, levee construction, and public works construction, for nurseries, greenhouses and landscaping, fencing, penning and enclosing livestock fields and pastures, and construction of civil engineering structures;
plastic mesh materials for asphalt and concrete reinforcement, and construction of civil engineering structures