Quality is always our life, so we try our best to keep our high quality including the product quality, empty tin quality and empty carton quality, for the empty tin, we make all with white or yellow ceramic coating inside to avoid rusting.3,For the shipping line, we only use big, good and fast shipping line, like MAERSK line, CMA-CGM, MOL, ect, it's for customers to receive goods as soon as possible.