Manually operated metal valves

manually operated valves made primarily of metal for industrial and residential use, namely, pressure, flow control, and non-return valves

metal fluid control valves, namely, check valves and foot valves

industrial thermal profile combustion burner

Check and Foot Valves [, Pump Strainers, Well Screens and Well Seals ]

Non-metal building materials in the nature of structural elements of plastic in the form of plastic modules and cells for installation in the ground to promote plant and tree growth and health, to control the flow of storm water and floodwater, to control soil erosion, and to assist the reinforcement of surfaces, namely, paved surfaces; non-metal building materials in the nature of structural plastic modules forming a load-bearing matrix for use in the ground for the sub-ground protection of ...

Non-metal building materials in the nature of structural elements of plastic in the form of plastic modules and cells for installation in the ground to promote plant and tree growth and health, to control the flow of storm water and floodwater, to control soil erosion, and to assist the reinforcement of surfaces, namely, paved surfaces; non-metal building materials in the nature of structural plastic modules forming a load-bearing matrix for use in the ground for the sub-ground protection of ...

chemically coated sand for enhancing the production of oil and gas from subterranean formations