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Spiral steel tube
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Malaking diameter na walang tahi na bakal na tubo
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Walang tahi na bakal na tubo
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Tubong bakal na parisukat
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High frequency welded tube
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Galvanized oval tube
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Hot dip galvanized tube
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Galvanized na hugis-parihaba na tubo
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Galvanized round tube
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Galvanized square tube
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Hugis na bakal na tubo
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Elliptical steel tube