The description of the item 6004102000 of China HScode: Knitted or crocheted fabrics of a width exceeding 30 cm, containing by weight 5% or more of elastomeric yarn or rubber thread, other than those of heading No.60.01: Containing by weight 5% or more of elastomeric yarn but not containing rubber thread: Knitted or crocheted fabrics of silk or spun silk, with a width not exceeding 30cm, containing 5% or more by weight of elastomeric yarn but not containing rubber thread