Post Date:29,Jan,2024 Pakali pano, kugwiritsa ntchito zida zochepetsera madzi za polycarboxylate superplasticizer ndizofala kwambiri pomanga, chifukwa magwiridwe antchito awo amatha kupititsa patsogolo mphamvu zomanga ndi uinjiniya wabwino. Izi ndi zobiriwira, ...
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