GRAND HITEK

Abstract

Repair or maintenance of machines and systems for manufacturing semiconductors; rebuilding machines that have been worn or partially destroyed; pump repair; pump repair and maintenance; rental of drainage pumps; repair or maintenance of integrated circuits manufacturing machines and systems; repair or maintenance of air-conditioning apparatus for industrial purposes; rebuilding engines that have been worn or partially destroyed; pump repair or maintenance.; Gas purifying apparatus for semiconductor industrial waste gas treatment; cooling appliances and installations; gas scrubbers apparatus for semiconductor industrial waste gas treatment; gas scrubbing apparatus; air filtering installations; air purifying apparatus and machines; air handlers; air filters for industrial use; gas purification installations; air purifying units for industrial use.; Gaskets; washers of rubber or vulcanized fibre; joint packings for pipes; joint packings.; Cast iron, unwrought or semi-wrought; common metals, unwrought or semi-wrought; titanium, unwrought or semi-wrought; cermets; washers of metal.; Vacuum pumps [machines]; pumps [machines]; screw pumps; reciprocating vacuum pumps.