structural welding, welding engineering. african american welders use carbon arc welding torches for spot welding of a construction beam in the construction industry. - 焊接 個照片及圖片檔工程師, 焊接工人, 工程技術
industrial welder working on a metal pipe using a mig welding machine - 焊接 幅插畫檔、美工圖案、卡通及圖標焊接工人, 工作坊, 工廠
technician measuring pipe diameter with vernier caliper in industrial workshop - 焊接 個照片及圖片檔焊接工人, 不銹鋼, 檢查
workers in protective gear welding metal in an industrial factory setting with sparks flying around brightly illuminating the area - 焊接 個照片及圖片檔焊接工人, 工業, 澳洲
welder, woman and iron grinder with spark for infrastructure production or remodeling. repair, blacksmith and garage with project and chop shop with manufacturing and metal worker in workshop - 焊接 個照片及圖片檔焊接工人, 女性, 工業
aliminum welding, masked workers and safety gloves aliminum welding in the factory. - 焊接 個照片及圖片檔焊接工人, 建築業, 男人
