UPN
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Tayada Wanaagsan ee Kaarboon Kulul oo Kulul U Beam C Channel Steel Black Iron Upn Channel
Jadwalka hadda jira wuxuu matalayaa heerka YurubKanaallada U (UPN, UNP),
Tilmaamaha, sifooyinka, iyo cabbirrada alwaaxyada UPN, oo loo sameeyay iyadoo la raacayo heerarka soo socda:
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DIN 1026-1:2000
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NF A 45-202:1986
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EN 10279:2000- Dulqaadka
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EN 10163-3:2004– Xaaladda dusha sare, Fasalka C, Fasalka Hoose 1
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STN 42 5550
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ČTN 42 5550
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TDP: STN 42 0135
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