85565406
Mar 9, 2012
Nov 6, 2012
Application of coatings, namely, application of hardsurface coating to downhole tools used in the oil and gas industry; refurbishing of downhole tools used in the oil and gas industry by application of hardcoating
Building Construction and RepairManufacturing of downhole tools for use in the oil and gas industry, to the order and specification of others
Treatment of Materials