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This standard covers seamless and welded steel tubes for general purposes, including pressure and structural applications. The standard specifies the technical delivery conditions for tubes made from non-alloy and alloy steel. bs en 10253-1 pdf
BS EN 10253-1:2003 - Seamless and welded steel tubes for general purposes - Part 1: Steel tubes for pressure and structural applications You're looking for a write-up on BS EN 10253-1 PDF
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