HD Welder welding iron bars industrial worker welding welder welding iron bars industrial worker welding construction 股票录像 Welder welding iron bars industrial worker welding welder welding iron bars industrial worker welding construction 股票录像
HD Worker records videos on cell phone builder in white hard hat with smartphone at project site construction 股票录像 Worker records videos on cell phone builder in white hard hat with smartphone at project site construction 股票录像
4K Caucasian man talking walkie talkie male architect engineer contractor builder in hard hat safety vest repairman guy caucasian man 影视素材 Caucasian man talking walkie talkie male architect engineer contractor builder in hard hat safety vest repairman guy caucasian man 影视素材
HD Powerman with scheme of works on power station powerman with scheme of works on power station worker with construction 影视素材 Powerman with scheme of works on power station powerman with scheme of works on power station worker with construction 影视素材
4K Worker smooths wet concrete on construction site an outdoor setting worker uses long brush tool to smooth surface of wet concrete 股票录像 Worker smooths wet concrete on construction site an outdoor setting worker uses long brush tool to smooth surface of wet concrete 股票录像
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