AL RYUM TECHNICAL ESTABLISHMENT

Power and Communication Line and Related Structures Construction

NAICS #23713 | This industry comprises establishments primarily engaged in the construction of power lines and towers, power plants, and radio, television, and telecommunications transmitting/receiving towers. The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialty trade contractors are included in this group if they are engaged in activities primarily related to power and communication line and related structures construction. All structures (including buildings) that are integral parts of power and communication networks (e.g., transmitting towers, substations, and power plants) are included. Constructing hydroelectric generating facilities--are classified in Industry 237990, Other Heavy and Civil Engineering Construction; Constructing broadcast studios and similar nonresidential buildings--are classified in Industry 236220, Commercial and Institutional Building Construction; Performing electrical work within buildings--are classified in Industry 238210, Electrical Contractors; Line slashing or cutting (except maintenance)--are classified in Industry 238910, Site Preparation Contractors; Installing and maintaining communication transmission lines performed by telecommunications companies--are classified in Subsector 517, Telecommunications; Locating underground utility lines prior to digging--are classified in Industry 561990, All Other Support Services; and Tree and brush trimming for overhead utility lines--are classified in Industry 561730, Landscaping Services.

Electrical Contractors

NAICS #23821 | This industry comprises establishments primarily engaged in installing and servicing electrical wiring and equipment. Electrical contractors included in this industry may include both the parts and labor when performing work. Electrical contractors may perform new work, additions, alterations, maintenance, and repairs. Installing and maintaining telecommunications lines by telecommunications companies--are classified in Subsector 517, Telecommunications; Constructing power and communication transmission lines--are classified in Industry 237130, Power and Communication Line and Related Structures Construction; and Burglar and fire alarm installation combined with sales, maintenance, or monitoring services--are classified in U.S. Industry 561621, Security Systems Services (except Locksmiths).

Plumbing, Heating, and Air-Conditioning Contractors

NAICS #23822 | This industry comprises establishments primarily engaged in installing and servicing plumbing, heating, and air-conditioning equipment. Contractors in this industry may provide both parts and labor when performing work. The work performed may include new work, additions, alterations, maintenance, and repairs. Installing electrical controls for HVAC systems--are classified in Industry 238210, Electrical Contractors; and Duct cleaning--are classified in Industry 561790, Other Services to Buildings and Dwellings.

All Other Specialty Trade Contractors

NAICS #23899 | This industry comprises establishments primarily engaged in specialized trades (except foundation, structure, and building exterior contractors; building equipment contractors; building finishing contractors; and site preparation contractors). The specialty trade work performed includes new work, additions, alterations, maintenance, and repairs. Foundation, structure, and building exterior work--are classified in Industry Group 2381, Foundation, Structure, and Building Exterior Contractors; Installing, repairing, or maintaining building mechanical systems--are classified in Industry Group 2382, Building Equipment Contractors; Finishing buildings--are classified in Industry Group 2383, Building Finishing Contractors; Paving public highways, streets, and roads--are classified in Industry 237310, Highway, Street, and Bridge Construction; Construction equipment rental with an operator (except cranes) or preparing land for building construction--are classified in Industry 238910, Site Preparation Contractors; Construction equipment rental without an operator--are classified in U.S. Industry 532412, Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing; Radon testing--are classified in Industry 541380, Testing Laboratories; Power washing and other building exterior cleaning (except sandblasting)--are classified in Industry 561790, Other Services to Buildings and Dwellings; and Environmental remediation work, such as asbestos abatement--are classified in Industry 562910, Remediation Services.

Industrial Valve Manufacturing

NAICS #332911 | This U.S. industry comprises establishments primarily engaged in manufacturing industrial valves and valves for water works and municipal water systems. Manufacturing fluid power valves--are classified in U.S. Industry 332912, Fluid Power Valve and Hose Fitting Manufacturing; and Manufacturing plumbing and heating valves--are classified in U.S. Industry 332919, Other Metal Valve and Pipe Fitting Manufacturing.

Engine, Turbine, and Power Transmission Equipment Manufacturing

NAICS #3336 |

Pump and Compressor Manufacturing

NAICS #33391 | This industry comprises establishments primarily engaged in manufacturing pumps and compressors, such as general purpose air and gas compressors, nonagricultural spraying and dusting equipment, general purpose pumps and pumping equipment (except fluid power pumps and motors), and measuring and dispensing pumps. Manufacturing fluid power pumps and motors and handheld pneumatic spray guns--are classified in Industry 33399, All Other General Purpose Machinery Manufacturing; Manufacturing agricultural spraying and dusting equipment--are classified in Industry 33311, Agricultural Implement Manufacturing; Manufacturing laboratory vacuum pumps--are classified in Industry 33911, Medical Equipment and Supplies Manufacturing; Manufacturing pumps and air-conditioning systems and compressors for motor vehicles--are classified in Industry Group 3363, Motor Vehicle Parts Manufacturing; and Manufacturing air-conditioning systems and compressors (except motor vehicle)--are classified in Industry 33341, Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing.

Motor and Generator Manufacturing

NAICS #335312 | This U.S. industry comprises establishments primarily engaged in manufacturing electric motors (except internal combustion engine starting motors), power generators (except battery charging alternators for internal combustion engines), and motor generator sets (except turbine generator set units). This industry includes establishments rewinding armatures on a factory basis. Manufacturing electric outboard motors--are classified in U.S. Industry 333618, Other Engine Equipment Manufacturing; Manufacturing gas, steam, or hydraulic turbine generator set units--are classified in U.S. Industry 333611, Turbine and Turbine Generator Set Units Manufacturing; Manufacturing starting motors and battery charging alternators for internal combustion engines--are classified in U.S. Industry 336322, Other Motor Vehicle Electrical and Electronic Equipment Manufacturing; Rewinding armatures, not on a factory basis,--are classified in Industry 811310, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance; and Manufacturing complete welding and soldering equipment--are classified in U.S. Industry 333992, Welding and Soldering Equipment Manufacturing.

Switchgear and Switchboard Apparatus Manufacturing

NAICS #335313 | This U.S. industry comprises establishments primarily engaged in manufacturing switchgear and switchboard apparatus. Manufacturing relays--are classified in U.S. Industry 335314, Relay and Industrial Control Manufacturing; Manufacturing switches for electronic applications--are classified in U.S. Industry 334419, Other Electronic Component Manufacturing; and Manufacturing snap, pushbutton, and similar switches for electrical circuits--are classified in U.S. Industry 335931, Current-Carrying Wiring Device Manufacturing.

Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers

NAICS #42361 | This industry comprises establishments primarily engaged in the merchant wholesale distribution of electrical construction materials; wiring supplies; electric light fixtures; light bulbs; and/or electrical power equipment for the generation, transmission, distribution, or control of electric energy.

Other Miscellaneous Durable Goods Merchant Wholesalers

NAICS #42399 | This industry comprises establishments primarily engaged in the merchant wholesale distribution of durable goods (except motor vehicle and motor vehicle parts and supplies; furniture and home furnishings; lumber and other construction materials; professional and commercial equipment and supplies; metals and minerals (except petroleum); electrical goods; hardware, and plumbing and heating equipment and supplies; machinery, equipment and supplies; sporting and recreational goods and supplies; toy and hobby goods and supplies; recyclable materials; and jewelry, watches, precious stones and precious metals). Merchant wholesale distribution of automobiles and other motor vehicles, motor vehicle supplies, tires, and new and used parts--are classified in Industry Group 4231, Motor Vehicle and Motor Vehicle Parts and Supplies Merchant Wholesalers; Merchant wholesale distribution of furniture and home furnishings--are classified in Industry Group 4232, Furniture and Home Furnishing Merchant Wholesalers; Merchant wholesale distribution of lumber, plywood, millwork, wood panels, brick, stone, roofing, siding, and other nonelectrical construction materials--are classified in Industry Group 4233, Lumber and Other Construction Materials Merchant Wholesalers; Merchant wholesale distribution of photographic; office; computer and computer peripheral; medical, dental, hospital, ophthalmic; and other commercial and professional equipment and supplies--are classified in Industry Group 4234, Professional and Commercial Equipment and Supplies Merchant Wholesalers; Merchant wholesale distribution of coal and other minerals and ores and semifinished metal products--are classified in Industry Group 4235, Metal and Mineral (except Petroleum) Merchant Wholesalers; Merchant wholesale distribution of electrical goods--are classified in Industry Group 4236, Electrical and Electronic Goods Merchant Wholesalers; Merchant wholesale distribution of hardware, and plumbing, heating, air conditioning, and refrigeration equipment and supplies--are classified in Industry Group 4237, Hardware, and Plumbing and Heating Equipment and Supplies Merchant Wholesalers; Merchant wholesale distribution of construction, mining, farm, garden, industrial, service establishment, and transportation machinery, equipment and supplies--are classified in Industry Group 4238, Machinery, Equipment, and Supplies Merchant Wholesalers; Merchant wholesale distribution of sporting goods and accessories; billiard and pool supplies; sporting firearms and ammunition; and/or marine pleasure craft, equipment, and supplies--are classified in Industry 423910, Sporting and Recreational Goods and Supplies Merchant Wholesalers; Merchant wholesale distribution of toys, fireworks, playing cards, hobby goods and supplies and/or related goods--are classified in Industry 423920, Toy and Hobby Goods and Supplies Merchant Wholesalers; Merchant wholesale distribution of automotive, industrial, and other recyclable materials--are classified in Industry 423930, Recyclable Material Merchant Wholesalers; and Merchant wholesale distribution of jewelry, precious and semiprecious stones, precious metals and metal flatware, costume jewelry, watches, clocks, silverware, and/or jewelers' findings--are classified in Industry 423940, Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers.

Security Guards and Patrol Services

NAICS #561612 | This U.S. industry comprises establishments primarily engaged in providing guard and patrol services, such as bodyguard, guard dog, and parking security services. Establishments primarily engaged in selling, installing, monitoring, and maintaining security systems and devices, such as burglar and fire alarms and locking devices, are classified in Industry 56162, Security Systems Services.

Security Systems Services

NAICS #56162 | This industry comprises establishments engaged in (1) selling security systems, such as burglar and fire alarms and locking devices, along with installation, repair, or monitoring services or (2) remote monitoring of electronic security alarm systems. Selling security systems for buildings without installation, repair, or monitoring services--are classified in Sector 42, Wholesale Trade or Sector 44-45, Retail Trade; Retailing motor vehicle security systems with or without installation or repair services--are classified in Industry 441310, Automotive Parts and Accessories Stores; and Providing key duplication services--are classified in Industry 811490, Other Personal and Household Goods Repair and Maintenance.

Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance

NAICS #8113 |