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I-Hangzhou ADD Window Energy Saving Technology Co., Ltd. itholakala e-Hangzhou China. Kuyibhizinisi lobuchwepheshe elisungulayo elisebenza ngokukhethekile ku-R&D, ukuklama, ukukhiqizwa nokudayiswa kwamamotho ahlakaniphile afaka imithunzi yelanga nezinhlelo zokulawula. Ithimba lethu linesipiliyoni seminyaka engu-16 ku-R&D kanye nokusebenza kwemikhiqizo yemoto eshibilika ilanga. Sigxile ezindaweni ezibuhlungu ezimakethe, sazi izidingo zabasebenzisi bokugcina futhi sidale futhi sethula imikhiqizo yezimoto ekhuthaze izinguquko zemboni. Kusukela ngosuku lokuqala ADD Window kwaba

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