Mumichina yekugadzira nzungu, maelectrode anoita basa rakakosha mukuwana mawelds anoshanda uye emhando yepamusoro. Nekudaro, nekufamba kwenguva, maelectrode anogona kupera kana kusvibiswa, zvichikanganisa kuita kwewelding. Ichi chinyorwa chinoongorora maitiro ekukuya uye kupfekedza nati welding muchina maelectrodes ku ...
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