Vapour barrier – polietilen（化工行业求助）
在加拿大 大家好，请帮个忙 1.PVC Waterproofing membrane, thickness 1.5mm – used as a final layer on roofs, UV stable, polyester reinforced. m230.000,00 2.Vapour barrier – polietilen of high density, thicknes 0,2mm (u=350.000)m230.000,00 第一...华人论坛