Si Yuan is an old brand that makes silk quilts. It is the earliest company to make silk quilts, and it was also relatively early to obtain the patent for water-washed silk quilts. From a small workshop to a standardized factory building of more than 13,000 square meters, there are nearly 200 senior technical personnel and more than 150 ingenuity workers. There are four "bases": the "R&D Center" is located in Zhouquan Town, Tongxiang, a famous silk quilt town in China in the center of the Hangjiahu Plain; the "Silkworm Base" raw material supply is located in Huangshan, Anhui; the "National Investment Operation Center" is located in Nantong; The National Brand Operation Center is located in Hangzhou. It is the drafting unit of the new national standard of "Silk Quilt" in 2019, the drafting unit of the national industry standard of "Silk Cotton", and the drafter of the world-quality Zhejiang-made "Pinzibiao" silk quilt category. It is very powerful both in the country and in the industry.