The quality of silk quilt mainly depends on the quality of cocoons. How to choose cocoons directly determines the quality of a silk quilt. The silkworm filament is not necessarily selected from the superior double cocoon on the cocoon. Secondary cocoon, pupa lined with cocoon can also weave silkworm filament. Yinsang relies on 28 years of experience in silk quilt production and the company's one-stop production capacity to control from the source. The front part uses superior double cocoons to make the "Sikver-silk" series of high-end silk quilts.