... galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE ... WaterISO 21809 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation ... systemsDIN 30670 Polyethylen coatings of steel pipes and fittingsSteel Grade:BS:1387, ...