Ключевые слова: blue collar worker, building, cargo, constructing, construction, day, daytime, development, discharge, discharging, discharging cargo, dumping, employment, fatigue uniform, gas pipe, hard hat, head protector, helmet, industrial clothing, job, making, occupation, operating, operation, operative, out, outdoors, outside, pipe, profession, raise, skull guard, sling, sling fastener, slinger, tube, unloading operations, up, without, work, work clothes, work uniform, work wear, worker, working, working clothes, working man, workman,