Ni Oṣu Keji ọjọ 15, ninu idanileko iṣelọpọ oye oni-nọmba ti olupese fastener ni agbegbe Yongnian, Ilu Handan, Agbegbe Hebei, awọn oṣiṣẹ n ṣayẹwo iṣẹ ṣiṣe ti ohun elo.Lati ibẹrẹ ti ọdun yii, Agbegbe Yongnian, Ilu Handan, Hebei Province ti ṣe iranlọwọ fun iyara agbegbe…
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