**Product Specifications:**
**Brand:** Jingdong Jingzao
**Material:** 100% organic certified natural silk
**Origin:** Selected from the original production area in Xifeng, Liaoning
**Weight:** Each wild oak silkworm cocoon weighs 10 grams
**Fill:** 100% natural wild oak silkworm silk
**Certification:** Meets national standard GB18401A
**Safety:** Class A, free of formaldehyde and carcinogenic azo dyes
**pH:** ≤7, antibacterial weak acidity
**Impurities:** ≤0.15g per 1kg of silk
**Quality:** High-quality, pure silk with low moisture content
**Design:** Classic and youth versions available
**Sizes:** 150x200cm, 200x230cm, 220x240cm
**Fill Weight:** Ranges from 300g+850g to 470g+1450g
**Total Weight:** Approximately 2.5kg to 4.2kg
**Style/Material:** Double cocoon, youth version, classic style
**Fabric:** 100% oak silkworm silk, 100% polyester fiber
**Color:** Beige
**Certifications:** China National Accreditation Service for Conformity Assessment (CNAS), SGS
**Testing Standards:** GB/T24252-2019.52, GB/T24252-2019.627
**Test Results:** Fiber content meets technical requirements
**Sample:** (B) Woven fabric, beige color
**Sample Quantity:** 1
**Safety Category:** Class A
Please note that product weight may vary slightly due to different temperature and humidity conditions. The provided weight information is for reference only.
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