Peb Tempered U profile iav / U channel iav khoom ua tau raws li qhov yuav tsum tau muaj txog § 8, Fragmentation thiab § 9.4, Lub zog siv tshuab raws li tau teev tseg hauv European tus qauv EN 15683-1 [1] thaum kuaj raws li EN 15683-1 [1] thiab EN 1288-4 [2].
