Lalaga Rovings o se ie bidirectional, faia i le ECR pea alava tioata ma untwisted taamilo i le fausaga lalaga manino. E masani ona faʻaaogaina i lima faʻapipiʻi ma faʻamalosi faʻamalosi FRP gaosiga. O oloa masani e aofia ai atigi vaa, tane e teu ai, laupepa tetele ma paneli, meafale, ma isi oloa fiberglass.