transverse seam

cross welt, transverse seam

In flexible-metal roofing, a seam between sheets; usually parallel to the gutter or to the ridge.
References in periodicals archive ?
Tenders are invited for Splitting of the longitudinal and transverse seams (distance between the seams 10 cm) in the concrete floor in livestock house.
The technology means that the seals at the longitudinal and transverse seams are narrower, so less packaging material is required.

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