The top documents tagged [norma tcnica ntc colombiana]
NTC2116
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219065902-NTC2832-1.pdf
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NTC6015 TUBERIA MULTICAPAS 2013.pdf
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Norma traccion union soldadas
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NTC3329
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NTC 5206
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NTC1001
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NTC2120 soldadura
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NTC5701.pdf
345 views