Satin pillowcases wholesale ordering from Netherlands

We are a successfull satin pillowcase brand that is in business for a few years.
At the moment we are producing in Poland.
Because we want to expand and accept more wholesale orders we are looking for another company for bigger amounts.

carton box design:
22cm length x 18cm x 2cm (length is without hanging part). Made from Alaska plus [330 g/m2].
Left below there is a see-thourgh hole from plastic with a diameter of 3 cm.
Stickers: Small round sticker with size and color, round transpa