Umthombo wokukhanya wamukela ukukhanya kwe-Ultra-high engenisiwe.Ukukhanya okuphezulu, ukusetshenziswa kwamandla okuphansi, impilo ende, amazinga e-chromatographic, i-engeli enkulu yokubuka, bonke abakaki besignali abakhweza ukukhanya bafakwe i-hot-dip galvanized, futhi izikulufu ezifakwayo ziyizikulufu eziqinile, ezinemisebenzi evimbela ukugqwala nengenamanzi iyonke futhi kulula. ukufaka.