#4799311 Sign with repairer, craftsmen and customer service by Ustofre9

accident accident prevention arrow attention bid blue button caution circuit connection crafts craftsman customer service device devices electricity engineering factory free hammer hobby enthusiasts icon icons industry instructions label law maintenance mandatory mandatory sign mandatory signs manual master masters meaning mechanical mechanical engineering note occupational operation pictogram pictograms plate production professional protection protection devices repair repairer risk risks rule rules safe safety safety sign safety signs shield sign signs skill start start of work switch switch line tool box training turn unlock user manual warning watch work workers workplace wrench