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| Peb muaj 2 factories Sanyuan thiab Weinan, thiab khoom siv ntau lawm tau ob peb teev extraction, concentration thiab distillation, sib cais thiab tsuag qhuav thiab tseem muaj ntau cov tshuaj tiv thaiv kettles; qhov no yuav ua tau raws li neeg nyias txojcai los tswj kom txhua kauj ruam ntawm tus txheej txheem ntau lawm yog nruj me ntsis tshuaj sij tau lees tias cov khoom tsis zoo uas peb niaj hnub. |  |
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