US CPSIA Tracking label request / 美国消费品法对于 tracking label 的要求
The information should be both in product and packing ( when the product has many components, it could only be marked in one main component )
2. 永久保留（可以是贴纸形式）, 清晰可见
Should be a remaining information ( paper sticker is acceptable )， easy to find.
The information should include manufacturer, address, and date of manufacture
The “ manufacturer ” could be over sea buyer, trading company
The address should detail enough, shows which city of the country