DSAW (Double-sided spiral submerged arc welded chitoliro) makhalidwe: njira kupanga welded chitoliro ndi yosavuta, dzuwa mkulu, mtengo wotsika, chitukuko mofulumira. Mphamvu ya chitoliro chowotcherera chozungulira nthawi zambiri imakhala yokwera kuposa chitoliro cha dsaw ndipo imatha kuchepetsa kupanga kwa billet kwa chitoliro chachikulu cha m'mimba mwake, ...
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