and other equipment under the supervision of head custodian; stripping and scrubbing of floors; finishing and refinishing all types..., malfunctions of equipment, and any other information needed by head custodian; acts as a substitute for head custodian. Performs...
and other equipment under the supervision of head custodian; stripping and scrubbing of floors; finishing and refinishing all types..., malfunctions of equipment, and any other information needed by head custodian; acts as a substitute for head custodian. Performs...