Amabakala okusebenza kweebholiti zokudityaniswa kwesakhiwo sensimbi ahlulwe abe ngamabakala angaphezu kwe-10 afana ne-3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, njl. Phakathi kwabo, iibholiti zebakala 8.8 nangaphezulu zenziwe. yentsimbi ephantsi-carbon alloy okanye medium-carbon steel kwaye ziphathwa ubushushu (ukucima, t...
Funda ngokugqithisileyo