Heerarka Qaranka ee Rinjiga Calaamadaynta Laamiga ee dhawaan la daabacay (JT/T 280-2022) ayaa qeexay shuruudaha jawaannada baakadaha EVA ee rinjiga calaamadaynta heerkulbeegga. Waxaan rumaysanahay in heerka cusubi uu gacan ka geysan doono riixitaanka caannimada ee bacaha EVA ee rinjiga calaamadaynta waddooyinka.
Waqtiga boostada: Febraayo-06-2023