19 Environmental control barriers and enclosures, namely, non-metal precast concrete wall and ceiling systems used for environmental separation and containment in industrial and commercial applications; transportable precast concrete buildings specifically designed to resist a range of hazards in the nature of explosions, fires, toxic/flammable gas ingress, shrapnel, and extreme weather; non-metal storage sheds and non-metal transportable buildings used to house environmental, pressure, temperature and explosion analysis testing equipment
Trademark: 98250793
