There is a bigger problem
You don’t understand Amazon policy
IF you sell on the USA platform (.COM) and you ship from overseas, the seller must
- Pay all freight charged
- Prepay all taxes and customs clearing charges
- Provide a Return address in the USA for buyer returns OR pay all international return shipping, even in the case of buyer discretionary returns
This means that a USA customer can decide they don’t like the color, or change their mind, and YOU are still obligated to pay for return shipping to China.
You are going to lose a lot of money if you do not understand the policies.
Shipping or drop shipping from offshore works mostly for items that are small enough to ship mail or ePacket, that customers are willing to wait 14 - 21 days for, under the de minimus value for customs charges, and cheap enough for the seller to abandon rather than pay return shipping.
Offering expedited or air shipping, offering expensive products, or offering heavy/bulky products from offshore are stunningly bad ideas because they create huge downside risks for the seller.