Solusan buluu 70 jẹ awọ epo idalẹnu irin kan pẹlu awọn ẹya bii awọ didan, rọrun lati tu. O ni ọpọlọpọ awọn abuda, gẹgẹbi awọ giga, ifọkansi giga, resistance oju ojo giga, iwọn otutu ati resistance ina, acid ati resistance alkali. Awọn abuda wọnyi jẹ ki epo ...
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