the technician operator working with press brake hydraulic bending machine. stock photo - 金屬片 個照片及圖片檔
the process of bending sheet metal on a sheet bending machine in the construction factory - 金屬片 個照片及圖片檔
construction workers install new roofs, roofing tools, and electric drills used on new roofs with metal sheets. - 金屬片 個照片及圖片檔