If there is besmirch on leather, dip in with clean wet sponge scour is wiped, perhaps dip in with cloth bath of soap of proper pH indicator is brushed, make its natural work next.

• 若皮革上有污渍，用干净湿海绵蘸洗涤剂擦拭，或者用布蘸适当浓度的肥皂水洗擦，然后让其自然干。