KDR KUREHA DEGRADABLE RUBBER

Oil field equipment, namely, drilling rig mechanization devices in the nature of bridge plugs, frac plugs, packers and ball sealers used in an oil and gas wellbore; rock drilling machines for downhole, and their parts and fittings, namely, bridge plugs, frac plugs, packers and ball sealers that are used in an oil and gas wellbore; mining machines and apparatus and their parts and fittings, namely, bridge plugs, frac plugs, packers and ball sealers that are used in an oil and gas wellbore; all the foregoing goods being degradable