Operateand maintain finishing machines to grind, drill, sand, bevel, decorate, wash, or polish glass or glass products.
Blow tubing into specified shapes to prevent glass from collapsing, using compressed air or own breath, or blow androtate gathers in molds or on boards to obtain final shapes.
Heat glass to pliable stage, using gas flames or ovens androtating glass to heat it uniformly.
Place rubber hoses on ends of tubing and charge tubing with gas.
Spray or swab molds with oil solutions to prevent adhesion of glass.