chemical processing machine setters, operators, and tenders

эк. тр., амер. установщики и аппаратчики в химической промышленности (в SOC входят в подраздел "другие производственные профессии" в разделе "производственные профессии")

See:

chemical equipment operators and tenders, separating, filtering, clarifying, precipitating, and still machine setters, operators, and tenders, separating, filtering, clarifying, precipitating, and still machine setters, operators, and tenders, separating, filtering, clarifying, precipitating, and still machine setters, operators, and tenders