7 Oil field machines, namely, intervention packers for sealing and securing oil, gas, condensate and water wells, well bores and bore holes; oil field machines being permanent packers for sealing and securing oil, gas, condensate and water wells, well bores and bore holes; oil field machines being retrievable packers for sealing and securing oil, gas, condensate and water wells, well bores and bore holes; oil field machines being cased hole packers for sealing and securing oil, gas, condensate and water wells, well bores and bore holes; perforation cleanup straddles, namely, belts for machines for sealing and securing oil, gas, condensate and water wells, well bores and bore holes; power-operated setting tools for sealing and securing oil, gas, condensate and water wells, well bores and bore holes; parts of machines for sealing and securing oil, gas, condensate and water wells, well bores and bore holes, namely, hangers, intervention hangers, retrievable hangers, plugs, bridge plugs, high pressure plugs, slips, mechanical slips, hydraulic slips, chokes, variable chokes, and hydraulically-operated chokes; parts and fittings for the aforesaid goods