A physical object that is a totally sealed, gas-insulated compact switchgear unit. The primary switching devices can be either switch disconnectors or fused switch disconnectors or circuit breakers.

A physical object that is a totally sealed, gas-insulated compact switchgear unit. The primary switching devices can be either switch disconnectors or fused switch disconnectors or circuit breakers.

A physical object that is a vertical or near vertical pipe for the upward flow of liquid or gas.

A physical object that is a vertical or near vertical pipe for the upward flow of liquid or gas.

A support connecting a riser to a structure.

A support connecting a riser to a structure.

Is a civil item intended for vehicle traffic.

Is a civil item intended for vehicle traffic.

A machine used to compact soil, gravel, concrete, or asphalt in the construction of roads and foundations

A machine used to compact soil, gravel, concrete, or asphalt in the construction of roads and foundations

A machine that cleans the road

A machine that cleans the road

A conveyor comprising a series of closely spaced rollers set so that their crests can support articles to be conveyed. They may be power-driven, or freely revolving. Tapered rollers are used to form bends in the conveyor line.

A conveyor comprising a series of closely spaced rollers set so that their crests can support articles to be conveyed. They may be power-driven, or freely revolving. Tapered rollers are used to form bends in the conveyor line.

A physical object that is the outside upper covering of a house or other building or the ceiling of a room or other covered part of a house, building, etc.

A physical object that is the outside upper covering of a house or other building or the ceiling of a room or other covered part of a house, building, etc.

A cover intended to cover an outer roof.

A cover intended to cover an outer roof.

Is an air handling system that integrates components for heating, ventilation, air conditioning and filtration into a single self-contained cabinet to condition and deliver air to interior zones.

Is an air handling system that integrates components for heating, ventilation, air conditioning and filtration into a single self-contained cabinet to condition and deliver air to interior zones.

Part of the inside of a building that is divided from other areas by walls and a door and that has its own floor and ceiling.

Part of the inside of a building that is divided from other areas by walls and a door and that has its own floor and ceiling.

A mechanical cable that is a large stout cord of strands of fibres twisted or braided together.

A mechanical cable that is a large stout cord of strands of fibres twisted or braided together.

A variable area flow meter which consists of a tapered tube of glass with a float inside that is pushed up by flow and pulled down by gravity.