2341. HIGHWAY, STREET, BRIDGE AND TUNNEL CONSTRUCTION

23411. HIGHWAY AND STREET CONSTRUCTION
23412. BRIDGE AND TUNNEL CONSTRUCTION

2349. OTHER HEAVY CONSTRUCTION

23491. WATER, SEWER, AND PIPELINE CONSTRUCTION
23492. POWER AND COMMUNICATION TRANSMISSION LINE CONSTRUCTION



1. ZVYAZOKBUD-INVEST

23493. INDUSTRIAL NONBUILDING STRUCTURE CONSTRUCTION
23499. ALL OTHER HEAVY CONSTRUCTION