Insulation Worker, Refrigeration Equipment heat and frost insulators fabricate, assemble and apply insulation materials to plumbing, heating, cooling and refrigeration systems, as well as piping equipment and pressure vessels, to reduce the passage of heat, cold, sound, smoke or fire.

Insulation Worker, Sound-Proofing interpret and evaluate results from testing and building acoustics, then produce reports based on the results, to present to the client and internal management.

Insulation Installer is responsible for inspecting the building premises to install materials needed for insulation as a way to regulate heat resistance and increase the efficiency of air conditioning systems. 

Structural Steel Worker erect, place, and join steel girders, columns, and other pieces to form structural frameworks. 

Erector, Constructional Steel assemble the erector  metal framework of new buildings or structures, by fitting together steel girders, pipework and beams.

Ship Plater cut and shape heavy sheet metal. This is then used in the building of large structures such as tanks, oil rigs, power stations and the hulls of ships

Riveter assemble several metal parts together by riveting guns, rivet set and hammers, or by operating a riveting machine that all perform the purpose of drilling holes on the rivet shank of the metal part and of inserting rivets, bolts, into these holes in order to fasten them together.

Marker, Structural Metal cut, bend, and weld steel pieces, using metal shears, torches, and welding equipment.

Shipwright, Metal build and repair boat of all sizes, from light vessels like canoes to heavier vessels like naval ships and yachts.

Preparer, Structural Metal shape, assemble and erect heavy metal girders and plates to form structures and frameworks.

Ship Hull Fitter will layout and fabricate metal structural parts such as plates, bulkheads, and frames within the hull of a vessel for riveting or welding.

Rigger move heavy materials and equipment around worksites using rigging gear such as pulleys, cranes and winches.

Rigger, Hoisting Equipment are responsible for operating industrial equipment that lifts and moves materials. 

Rigger, Logging set up and repair rigging at logging yards . They are responsible for aligning and anchoring the machinery, attaching loads, controlling the movement of heavy equipment, and ensuring the rigging is safe for use.

Rigger, Ship responsible for the lifting and moving of heavy and bulky objects, whether aboard ships or around the shipyard.

Rigger, Petroleum and Gas Well Drilling are to monitor, inspect, move, or operate heavy equipment and machinery on an oil rig.

Splicer, Rope and Cable to install, splice, test, and repair the high-voltage cables and wires. 

Rigger, Aircraft assemble, fit, fasten, and install parts of airplanes, space vehicles, or missiles, such as tails, wings, fuselage, bulkheads, stabilizers, landing gear, rigging and control equipment, or heating and ventilating systems.

Rigger, Railway Cable assemble rigging gear to move and position equipment and structural components, or install and maintain cables, ropes and wires on the railway train

Marine Engine Mechanic to repair and maintain marine engines, restore motorized and electrical equipment on boat engines, winterize boats, determine problems with a vessel, and conduct general routine maintenance of vessels.