Seminara yaukadaulo ya 2021 yoyendetsedwa ndi Bolang Refrigeration Equipment Co., Ltd. idachitika bwino ku Nantong City, m'chigawo cha Jiangsu. Seminale iyi idapempha akatswiri pantchito zamafiriji, atsogoleri a Nantong Institute of Refrigeration komanso uinjiniya wabwino kwambiri ...
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