Qingdao sainuo wani kamfani ne na cikin gida wanda ke yin r&d da samar da kakin polyethylene, kakin zuma na musamman da aka gyara, EBS, Stearate da sauran samfuran mai da rarrabawa.Tun da aka kafa kamfanin fiye da shekaru 10, ya himmatu wajen bunkasa fasahar samar da...
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