EST ta kasance tana bin manufar sabis na "abokin ciniki da farko" tun daga farko kuma ya himmantu don samarwa abokan ciniki samfuran gasa da amfanar jama'ar ɗan adam.
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Ginin fasaha na 44 NO.4 Hanya na 10 na Songshan Lake Industrial Park Dongaun City, lardin Guangdong na kasar Sin