Titha kupanga zinthu molingana ndi muyezo monga EN877 / DIN19522 / ISO6594 ASTM A888 / CISPI 301, CSA B70, BS4622, ISO2531, EN545, EN598.Ndikukhulupirira kuti tikhoza kukhazikitsa mgwirizano wautali komanso wopindulitsa ndi mabwenzi padziko lonse lapansi.
Nthawi yotumiza: May-27-2020