ICNEA 3311—Metal structure manufacturing

Where 3311 sits

1. C Manufacturing industry
2. 33 Metal products industry
3. 331 Manufacturing of structural metal products
4. 3311 Metal structure manufacturing

What 3311 includes

• Including manufacturing activities for the following metal structures：
• Steel structure: multi-layer, steel structure for high-rise buildings, steel structure for bridges, steel structure for towers and masts, mesh frame, mesh shell structure, pipe structure, formwork, scaffolding, steel pillars for tunnel support, steel assembly structural parts, portal steel frame, light plant structure, arched corrugated steel roof structure,Urban construction steel products, heavy-duty industrial plant structures, boiler steel structures, steel derricks and superstructures, steel adjustable or retractable pillars, steel tubular columns, steel retractable lattice flat roof beams, steel-made sluice gates, steel-made embankments, trestles, steel-made marine masts, gangways,Steel-made crossing barriers, special structures, residential steel structures, and other steel structures
• Steel structure parts and processed steel: steel structure parts, steel structure processed steel
• Zinc-made building structure: zinc-made eaves, zinc-made roof components, zinc-made greenhouse frame, and other zinc-made building structures
• Zinc building structure parts
• Prefabricated buildings (mobile houses): complete houses (mobile newsstands, mobile toilets, other complete houses), incomplete houses
• Storage cargo racks: steel storage shelves, aluminum storage shelves, zinc shelves, and other storage cargo racks
• The following products are included in this category
• High-performance stainless steel products (high-performance refers to the use in nuclear power, aerospace and military equipment, marine engineering, and biomedical engineering (category 2 and above))
• Stainless steel bellows compensator
• Stainless steel bellows expansion joint
• High flexibility, high temperature resistance, corrosion resistance, stainless steel metal hose and other products
• Shock absorption and noise reduction stainless steel metal hose
• Stainless steel porous material
• Stainless steel powder and its powder metallurgy products
• Refers to the production activities of manufacturing metal components, metal component parts, steel products for construction and similar products with metals such as iron, steel or aluminum as the main materials. These products can be transported and are easy to assemble, install or erect.

What 3311 excludes

• Assembled railway and tram track equipment and accessories, included in 3716 (Manufacturing of special railway equipment, equipment and accessories)
• Components used in shipbuilding or the construction of floating structures are included in the relevant categories of 3737 (manufacturing of marine engineering equipment) and 3739 (manufacturing of beacon equipment and other related equipment)

3311 in other systems