Install and repair telecommunications cable, including fiber optics.
Apply a mixture of cement, sand, pigment, or marble chips to floors, stairways, and cabinet fixtures to fashion durable and decorative surfaces.
Apply hard tile, marble, and wood tile to walls, floors, ceilings, and roof decks.
Use hand-welding or flame-cutting equipment to weld or join metal components or to fill holes, indentations, or seams of fabricated metal products.