Muri rusange, umwobo ufite diameter ya 0.1mm-1.0mm bita umwobo muto. Ibyinshi mu bikoresho bikoreshwa mu bice bigomba gutunganywa ni ibikoresho bigoye ku mashini, harimo karbide ya sima, ibyuma bitagira umwanda hamwe n’ibindi bikoresho bigize molekile, bityo bitandukanye o ...
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