It is understood that after the opening of the retrospective platform, the quality of the construction of the past, the companies were to achieve the docking system can be traced back to the platform, as long as consumers via smartphones dimensional code scanning products on the packaging, or by entering a number in the platform site retrospective inquiries to the production, testing, regulatory and consumer sectors. For infant formula milk powder, milk powder can check not only the production, distribution, sales cycle, also dating back to when the milk produced from which ranch, which points specifically produced by the dairy plant Which companies for consumers to buy at ease products provide the basis.