Development variorum formarum et specificarum tuborum ferreorum et calidis galvanizatorum in manufactura habet differentiam fundamentalem a tubo prae-galvanizato factus ex lamina frigido volutata, quae prius galvanizata est et deinde soudata.
| TUBUS FERRI ROTUNDI PRÆ-GALVANIZATI | ||||
| Ferrum: | 40g/㎡ -150g/㎡ | |||
| Crassitudo Parietis: | 0.5mm-15mm | |||
| Longitudo: | 6m-12m aut Finitum | |||
| MAIORA DETAILLES DE REGE PRODUCO | ||||||||
| Exsequendarum Normam | Nominalis Modus (mm) | Tolerantia Magnitudinis (mm) | Crassitudo (mm) | Tolerantia crassitiei (mm) | Tolerantia rotunditatis (mm) | Tolerantia curvaturae (mm) | Longitudo (m) | Longitudo Tolerantia (Mm) |
| ASTM A500 vel Norma Societatis | 20 | +/- 0.3 | 0.6-2.2 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 |
| 25 | +/- 0.3 | 0.6-2.2 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 32 | +/- 0.3 | 0.6-2.2 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 38 | +/- 0.3 | 0.7-2.3 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 40 | +/- 0.3 | 0.7-2.3 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 42 | +/- 0.3 | 0.7-2.3 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 47 | +/- 0.3 | 0.8-2.3 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 48.3 | +/- 0.3 | 0.8-2.3 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 59 | +/- 0.3 | 0.8-2.3 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 60.3 | +/- 0.3 | 0.8-2.3 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 75 | +/- 0.3 | 0.8-2.3 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 88 | +/- 0.3 | 0.8-2.3 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
| 113 | +/- 0.3 | 0.8-2.3 | +\/−0.03 | ≤0.5 | ≤2mm\/m | 4.0-12 | +20\/−0 | |
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