首页>
外国专利>
Plant and mineral waxes that dissolve to recycle hydrogen and non recycle hydrogen, and then combine the dissolving with the organic color of basic anion type. Their dye ability is due to the addition of element elements
Plant and mineral waxes that dissolve to recycle hydrogen and non recycle hydrogen, and then combine the dissolving with the organic color of basic anion type. Their dye ability is due to the addition of element elements