'Mala oa lipoleiti tse ka holimo le tse ka tlaase tsa ho roala ha vacuum ha lia nepahala,' me 'mala oa lipheletsong tse peli tsa poleiti o fapane.Ho phaella moo, 'mala oa blackening ke ofe?Moenjiniere oa Rich Special Materials Co., Ltd, Monghali Mu Jiangang, o hlalosa mabaka.Ho fifala ho bakoa ke moea o setseng ...
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