Who knows where the imitation silk for making imitation silk quilt is imported

Who knows where the imitation silk for making imitation silk quilt is imported follow Is imitation silk chemical fiber? It can be detected. There are more than 20 kilos of kapok, about 60 tussah silk (this can not be detected, it is Panax notoginseng, that is, impure silk), and 80 pure tussah silk.