Profile: Testwel Instruments Company is an importer & exporter of bitumen testing equipment, concrete testing equipment, scientific, survey, civil & industrial testing instruments. We specialize in manufacturing surveying instrument, soil testing equipment, industrial & concrete testing equipment and other high-class testing equipment. Our surveying instruments include theodolite, electronic surveying instrument, digital as well as optical surveying instrument, auto leveling instruments, hotair oven and compression testing machines.