Tangshan Express Company can send international documents by post.

Of course. EMS or DHL can be sent by international express, but the price is more expensive. The post office is ok, maybe it's cheaper. I sent something to Germany in the post office last year and it will arrive soon. It shouldn't be too expensive to pack down jackets by weight, but it will cost more than 200 yuan anyway. You can also ask at the post office first, just north of Tangshan Department Store. This small piece is usually sent by air.