According to different products, customs specification declarations have different declaration elements. Special attention should be paid to: if the declaration is sliver, roving, yarn and chopped fiber, the product name, material (made of fiberglass), type and length need to be declared; If it is declared as a woven fabric, it is also necessary to declare the weaving method (woven), yarn type (spun yarn, etc.), width, weight per square meter, single yarn fineness, etc.

For example: the standard declaration elements of tax code 7019.5200 are: 1. Product name; 2. Material (made of fiberglass); 3. Weaving method (woven); 4. Yarn type (spun yarn, etc.); 5. Width; 6. Each Square meter weight; 7. Single yarn fineness; 8. Nominal thickness.

The accurate declaration of the product "fiberglass cloth" is: fiberglass filament woven cloth for copper-clad laminates, width 50 cm, gram weight per square meter 150, single yarn fineness 120 tex, nominal thickness 2mm.