construction project outline icons collection. building, infrastructure, architecture, engineering, , erection

vector icon line building infrastructure architecture engineering design erection installation project redevelopment masonry carpentry excavation contracting plumbing landscaping constructible scaffolding constructional asphalt concrete cementing waterproofing demolition fabrication reinforcement renovation civil rigging prefabrication drywall millwork shoring painting grouting formwork steelwork repairing maintenance wallpapering tiling overhauling surveying