... ,kinescope,printing and dying,pharmacy,meters,electronic meters,machinery manufacturing,all furnaces,boilers and castings.4.The ... metallurg-y ,electrical power,cement,coal,chemical engineering,machinery,rubber,carbon,building materia-l,mine,boilers,industrial ... material,rubbish incineration,asphalt concrete mixing,military industry,boat manufacturing,light industry,tobacco,medicine,flour etc,is truly a ...