Turashobora kubyara ibicuruzwa dukurikije bisanzwe nka EN877 / DIN19522 / ISO6594 ASTM A888 / CISPI 301, CSA B70, BS4622, ISO2531, EN545, EN598.Twizere rwose ko dushobora gushyiraho ubufatanye burambye kandi bwungurana ibitekerezo nabafatanyabikorwa kwisi yose.
Igihe cyo kohereza: Gicurasi-27-2020