gas pipeline inspection on the rig platform in sunny day. woman in safety workwear with tablet looking at the gas pipe - 逆止閥 個照片及圖片檔原油, 商務, 黑人種族
turning on and off of the gas. dark skin female inspector in reflective clothing, shuts off the gas valve on the pipeline. - 逆止閥 個照片及圖片檔天然氣, 氣體, 原油
raw water treatment for bottled water production. a service engineer in a water filtration control room and using a tablet computer to check process of raw water filtration for mineral water bottling production line. - 逆止閥 個照片及圖片檔日本人, 水生植物, 工廠
hygiene monitoring in filtration process of bottled mineral water industry. a male japanese service engineer uses a tablet and check machine valve in raw water filtration process based on regulation in a water filtration control room. - 逆止閥 個照片及圖片檔工業
