Isihloko sesithakazelo sasingumkhakhazi ovela eShaanxi, eChina. Le nkampani iye yathuthukisa imisebenzi yezindlela zokugibela nge-aggregates. Kulesi simo, ngoba ukwakhiwa kwamaphondo kudinga ikakhuluwa iconcreti ephezulu, inkampani yokwakha yayinazidingo ezinkulu zekhanda lemvelo elenziwe yimishini. Kodwa-ke, ikhanda lemvelo elenziwe yimishini yemvelo lahluleka ukufanelekela izindinganiso ngenxa yezizathu ezahlukene njenge-finess modulus elikhulu kanye nokungcoliswa okubi kwezithambisi. Ukuze lenze ikhanda lemvelo elinekhwalithi, inkampani yabathengi, ngemuva kokuhlola nokuhlaziywa okuningi, yenza isinqumo sokuba neSBM's VU Tower-like Sand-making System. Le nsizakalo yokwenza ikhanda lemvelo
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