Amamaki okusebenza ama-bolts oxhumano lwesakhiwo sensimbi ahlukaniswe ngamamaki angaphezu kwe-10 njenge-3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, njll. Phakathi kwabo, amabhawodi ebanga lesi-8.8 nangaphezulu enziwa yensimbi ye-low-carbon alloy noma i-medium-carbon steel futhi iphathwa ngokushisa (icisha, i ...
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