Zida ndi zida zomwe zimagwiritsidwa ntchito popanga kwaulere ndizosavuta, zapadziko lonse lapansi komanso zotsika mtengo. Poyerekeza ndi kuponya opanda kanthu, kupangira kwaulere kumachotsa shrinkage, shrinkage porosity, porosity ndi zolakwika zina, kotero kuti chopandacho chimakhala ndi zida zapamwamba zamakina. Ma Forgings ndi osavuta mawonekedwe komanso osinthika mu ...
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