17 Elastomeric and synthetic rubber parts for use in oilfield equipment and machinery, namely grommets, gaskets, washers, O-rings, plugs, packers, and seals; elastomeric and synthetic rubber parts for use in machinery and materials handling equipment utilized in industry and in equipment for drilling, producing, and transporting hydrocarbons, namely grommets, gaskets, washers, O-rings, plugs, packers, and seals