BUILDING MATERIALS (NON-METALLIC); NON-METALLIC RIGID PIPES FOR BUILDING; ASPHALT, PITCH AND BITUMEN; NON-METALLIC TRANSPORTABLE BUILDINGS; MONUMENTS, NOT OF METAL

CONSTRUCTION AND REPAIR SERVICES, NAMELY, DENSIFYING BASE SOILS TO IMPROVE LOAD-BEARING CAPACITY OF SITES OF BUILDING AND STRUCTURES, DENSIFYING SOILS TO REDUCE LIQUEFACTION POTENTIAL OR VIBRATION, LIFTING AND RESTORING SUNKEN PAVEMENTS, SLABS, FLOORS, FOUNDATIONS AND STRUCTURES

Injectable expandable non-metal tubes used to increase the density of base soils to improve load bearing capacity and reduce liquefaction potential and to lift and restore sunken pavement, slabs, floors and foundations

TEMPERATURE RESPONSIVE SWITCHES AND FLAME RESPONSIVE CONTROL APPARATUS INCLUDING SIGNAL GENERATORS IN THE FORM OF THERMOCOUPLES HEATED BY PILOT BURNERS AND MAGNETIC VALVES ENERGIZED BY THE THERMOCOUPLES