Lanu lanu galvalume laupepa o se mea faufale e faia i le tolu-lapisi mea tuʻufaʻatasia, e aofia ai substrate, zinc-aluminium alloy coating ma organic coating.After luga degreasing, phosphating ma togafitiga masima lavelave, o loʻo ufiufi i le faʻapipiʻiina o meaola ma tao.O le meafaitino o loʻo i ai se foliga mafolafola ma matagofie, mama mama, faʻamaʻi faʻamaʻi, ola umi, faʻaogaina lelei o le vevela, faʻaaogaina lautele i le fausiaina, felauaiga, eletise eletise, meafale ma isi fanua.