Spiral tšepe phala le tshebetso tlhahiso, batho ba a qapa mekhoa e mengata e babatsehang tjheseletsa le tlhahiso, 'me haholo ho kgothaletsa e tsitsitseng le ka potlako ntshetsopele ya indasteri, e boetse e etsa hore indasteri ena ntshetsopele ya optimized.Automatic submerged arc welding ke mokhoa o mocha oa ho tjheseletsa, inve...
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