Waukulu kupanga ndondomeko mkulu-anzanu chitoliro: billet Kutentha, perforated chubu, chitoliro kutambasuka.

Kuthamanga kwa chitoliro chapamwamba, kukula kwa chitoliro ndi kuchepetsa, kutsirizitsa ndi kuzirala chitoliro kapena njira yopangira tinganene kuti Billet Kutentha perforation kutentha tayi pickling ozizira kukokedwa kaboni woyaka kudula mutu kutsitsi subscript anamaliza kunyamula mtundu umodzi wa zitsulo chitoliro chodziwika bwino kuti: kuchulukira kwa maimidwe okhala ndi mipukutu yopita kumayendedwe osinthika amitundu yambiri yopitilira mandrel mphero, mumzere wopanda malire wachitsulo chopangira chitoliro chogubuduza pambuyo poyezera chitoliro chozungulira pambuyo pakugubuduza pa mfundo zambiri, malinga ndi zotsatira zake, pa osachepera kulamulira maudindo a malekezero a kutsinde mandrel mphero chomaliza kugubuduza mphero mpukutu m'munsi, kotero m'mbali khoma makulidwe osachepera.Nthawi zambiri aloyi chitoliro> aloyi chubu> aloyi chubu> mkulu aloyi aloyi zitsulo chitoliro otchulidwa wamba mpweya zitsulo, mkulu mpweya zitsulo, aloyi zitsulo ndi wamba otsika aloyi structural zitsulo kupanga payipi madzi kayendedwe kapena kapangidwe kupanga, mbali ntchito.Mkulu-anzanu chitoliro m'mimba mwake ndi khoma makulidwe zilipo, pali zosiyanasiyana khoma makulidwe ofanana m'mimba mwake akunja, lalikulu mkulu-anzanu chitoliro kuthamanga osiyanasiyana.Nthawi zambiri kutalika kwa chitsulo, chubu chotenthedwa ndi 3-12.5m, chitoliro chozizira (chokuta) ndi 1.5-9m.