ICNEA 3517—Special machinery manufacturing for tunnel construction

Where 3517 sits

1. C Manufacturing industry
2. 35 Special equipment manufacturing industry
3. 351 Manufacturing of special equipment for mining, metallurgy and construction
4. 3517 Special machinery manufacturing for tunnel construction

What 3517 includes

• It includes the following special machinery manufacturing activities for tunnel construction：
• Shield machine
• Hard rock TBM
• Pipe jacking machine
• Horizontal directional drilling equipment
• Other special equipment for tunnel construction
• Refers to the manufacture of special machinery for underground non-excavation construction, including tunnel boring machines (shield machines and hard rock boring machines), pipe jacking machines, horizontal directional drilling, etc.

What 3517 excludes

• Mining equipment, included in 3511 (Mining machinery manufacturing)
• Mining rock drilling equipment, included in 3511 (Mining machinery manufacturing)

3517 in other systems