Johannesburg, Afrique du Sud - 08 juin 2010 : Travailleur de la construction sur un chantier - Photo & image de stock

Bridge construction under performing the steel reinforcement of piling work

Mayor of Sao Paulo visits Tabaos Reservoir. September 14, 2020, Sao Paulo, Brazil: The Mayor of Sao Paulo city, Bruno Covas visits the works of Taboao Reservoir - Aricanduva 2, with Secretary of urban infrastructure and works,

Workers welding the steel for supporting the mold of concrete structure at the construction site

KUALA LUMPUR, MALAYSIA -MARCH, 2019: Construction workers installing & fabricating ground beam timber form works at the construction site. The formworks made from timber and plywood.

Worker without safety protective welding steel structure in construction factory, Use the wrong kind equipment and conditions hazardous working.