BBCNEWS Newsday December 21, 2021 00:18:00
The results a year ago, and the idea is that we are trying to use the beginnings, stainless steel or carbon steel, that could kill the virus —— copper steel. we tried at the beginning. we tried pierced steel. we expect pure steel will be good, but it actually is not. copper looks good, so we continue to develop these copper components. we found that after three hours, we can cure nine and .75% of virus, so after six hours, 99.99 —— 99.75%. the virus can sub be detected after 48 hours, and this... , , .,