Umgaqo-siseko wokukhetha izixhobo Kukho iintlobo ezininzi zezixhobo zokutshiza ezingenamoya, eziya kukhethwa ngokwale miba mithathu ilandelayo.(1) Ukukhethwa ngokweempawu zokugquma: okokuqala, qwalasela i-viscosity ye-coating, kwaye ukhethe izixhobo ezinoxinzelelo oluphezulu ...
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