Wins lanka engineering (pvt) ltd your trusted roofing solution looking for high-quality roofing sheets, gutters and flashing at affordable prices? wins lanka engineering (pvt) ltd is your trusted manufacturer of quality roofing solutions in sri lanka. we manufacture and supply a wide range of roofing products to suit your residential, commercial and industrial requirements. our products: roofing sheets (korean imported steel) union steel & nippon steel roofing sheets amano roofing sheets zinc magnesium roofing sheets gutters barge flashing valance boards down pipes gate cladding sheets c purlins & roofing accessories why choose us? direct manufacturer high-quality materials competitive prices various colours & profiles 10, 15 & 20 years warranty options complete roofing solutions under ...