2 20 24 years 20 25 20 30 20s 20's 25 30 accessory adult apparel apprentice apprentices associate associates automotive beginner beginners beings blue collar worker blue collar workers business cap caps caucasian caucasians chatting checked clothed clothing co worker colleague colored colors coloured colours communicated communicates communicating communication communications concentrated concentrates concentrating conversations conversed converses cooperations coveralls day days dedicate dedicates dedicating dedication defend defended defending defends dialog dialogs dialogue dialogues discussed discusses educate educated educates educating education es europe examined examines examining explaining exterior factories factory fellow fellows fixed fixes focus on background fortitude full body full length garments gentleman gentlemen guys hat hats headdresses headgear headpiece headpieces heard hearing hears horizontally horizontals human being humans indian indian ethnicity indians industrial plant industrial plants industrialization industrializations industrialized industries industry inspect inspected inspecting inspection inspections inspects instruction instructions knowledge knowledgeable learned learning learns learnt listened listener listeners listening listens lorries low angle low angle view male males man manufacturing plants men mend mended mending mends men's multi ethnic group novice novices ort outdoors people person persons photographic photography plant plants protect protected protective clothing protective eyewear protects reflective clothing repaired repairing repairs resolution resolutions restoration restorations restored restores rookie rookies safe safeguard safeguards safety safety vest safety vests scrutinize scrutinized scrutinizes scrutinizing security speaks spoken standing stood studi studied studies studying talked talker talkers talking talks taught teaches teaching team teams teamwork togetherness toil toiled toiling toils trades trained training transportation transported transporting transports truck trucks tutor tutored tutors twenties twenty two two people twos vehicle vehicles western european worked workers working works young adult young adults