Casing And Tubing Of A Kind Used In Drilling For Oil Or Gas, Welded, Of Flat-rolled Products Of Iron Or Steel, Of An External Diameter Of <= 406,4 Mm (excl. Products Of Stainless Steel Or Of Cast Iron)
Casing And Tubing Of A Kind Used In Drilling For Oil Or Gas, Welded, Of Flat-rolled Products Of Iron Or Steel, Of An External Diameter Of <= 406,4 Mm