BS1139 nicyo cyerekana kongereza gisanzwe cyibikoresho byibikoresho nibigize bikoreshwa mubwubatsi. Ishiraho ibisabwa kubisobanuro, couple, imbaho, hamwe na fittings ikoreshwa muri sisitemu yo guswera kugirango umutekano wemeze umutekano, ubuziranenge, no guhuza. Kubahiriza BS113999999 ni ngombwa gukomeza kuba inyangamugayo n'umutekano by'imiterere y'ibiti.
Igihe cya nyuma: Gicurasi-22-2024