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Standard gap weld (sgw)
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An aluminothermic weld where the initial gap between the rails is up to and including 40 mm. generally, the gap is 20 or 25 mm.
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Change analysis, английский
An analytical technique for use in the analysis phase of an investigation.
Wide gap weld (wgw), английский
An aluminothermic weld where the initial gap between the rails is greater than 40 mm. generally, the gap is in the order of 60 to 70 mm.
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