... Not machine-made; No chemical added;No bleached,No scrappy silk;No bad odor;4) Quality Authentication:OEKO- TEX100(1), ... GB18401(A), 10years guarantee; 5) Casing fabric: 100% Mulberry Silk Fabric6) Various sizes and designs available. Different weights for 4 ... ),GB18401(A), 10years guarantee; 5) Casing fabric: 100% Mulberry Silk Fabric6) Various sizes and designs available. Different weights for 4 ...