Certain colors, due to pigment ingredients, may inherently have very poor sulfuric acid resistance.
某些颜料，由于色素组成成份的性质而导致耐酸性很差。
Iron oxide red is an excellent pigment, which has fine qualities such as covering power, coloring power, heat resistance, resistance to solvent, acid fastness, innocuity and anti-rust.
氧化铁红具有良好的颜色遮盖力、着色力、耐热、耐溶剂、耐酸性、无毒、防锈等性能，是优质的颜料品种。
Iron oxide red is an excellent pigment, which has fine qualities such as covering power, coloring power, heat resistance, resistance to solvent, acid fastness, innocuity and anti-rust.
氧化铁红具有良好的颜色遮盖力、着色力、耐热、耐溶剂、耐酸性、无毒、防锈等性能，是优质的颜料品种。
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