tubosaranda.com...Non-Aloy steel tubes suitable for welding and threading / See annex CHINCHURRETA...
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tubosaranda.com...Non-Aloy steel tubes suitable for welding and threading / See annex CHINCHURRETA S.A. / See annex NP EN 10255:2004 + Al:2008 20094001634/10-1, 10-2, 10-5, 10-6 e