hand holding safety first s for work safety

safety work symbols hand protection workplace health security jobsafety workenvironment safetyawareness protectionfirst industry construction workplacesafety worker industrial healthsafety workprotection occupationalsafety safetygear professionalsafety warning precaution securitymeasure personalprotection workrules protectionsymbols industrysafety safetyhand safetywork careful workplacesymbol constructionsafety safetypriorities