... resistant with black or other paintingCommodityOil casing pipe/tubePlace of originTianjin, China(Mainland)StandardAPI 5L ... Thickness(mm)5mm-30mmSurfaceBlack/brightBrand NamePetroleum, oil , gas, chemistry, electrical power, metallurgy,etcPackingBundles,sea-worthy ... qualityProductivity1000MT/MonthMOQ5MTApplicationGenerally used in oil casing, conveying gas and oil,chemical industry,etc NoteThe quality ...