civil engineer and contractors control the pouring of cement from the cement mixer truck on block of precast wall at construction site of bulidings or housing estate project. worker is working in real estate or constuction indrusty. - 田螺車 個影片檔及 b 捲影像00:10
cement mixer truck leaving industrial construction site with the crane and heavy machinery in los angeles, california, 4k - 田螺車 個影片檔及 b 捲影像00:14
conveyor belt pouring concrete into mixer truck at industrial cement factory in los angeles, california, 4k - 田螺車 個影片檔及 b 捲影像00:28
a construction crew works a concrete pour crane at a large commercial job site. - 田螺車 個影片檔及 b 捲影像00:15
a construction crew works a concrete pour crane at a large commercial job site. - 田螺車 個影片檔及 b 捲影像00:13