This facilitates breaking nails with bare hands after a 10-twenty next dive. Significant water variations the Attributes from the steel, which makes it brittle. But in the mean time of evaporation of heavy drinking water, the rock returns to its previous state.MSDS (B?ng d? li?u an toàn v?t li?u): H??ng d?n thi?t y?u c?a b?n v? an toàn hóa ch?t