Abakhiqizi be-valve base-China: qonda indaba ngemuva komkhakha
Njengemishini eyinhloko emkhakheni wokulawula uketshezi, ama-valve asetshenziswa kabanzi ezimbonini eziningi ezifana ne-petroleum, amakhemikhali, ukwakhiwa, nokongiwa kwamanzi. Kodwa-ke, kubakhiqizi be-valve baseShayina, indaba yenqubo yokukhiqiza ayaziwa kancane. Lokhu ku...
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