1. Sankhani zida zoyenera Kuchotsa ulusi wamkati ndi kunja, muyenera kugwiritsa ntchito zida zoyenera, zomwe zimagwiritsidwa ntchito kawirikawiri ndi ma wrenches, ma torque, ma wrench sockets, etc. Pakati pawo, wrench ya torque imatha kusintha kukula kwa torque malinga ndi zosowa. kupewa kuwononga mphamvu mochulukira...
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