9802.00.91.00—Textile and apparel goods, assembled in Mexico in which all fabric components, excluding visible lining fabrics, were wholly formed and cut in the United States, provided that such fabric components, in whole or in part, (a) were exported in condition ready for assembly without further fabrication, (b) have not lost their physical identity in such articles by change in form, shape or otherwise, and (c) have not been advanced in value or improved in condition abroad except by being assembled and except by operations incidental to the assembly process; provided that the goods classifiable in chapters 61, 62 or 63 may have been subject to bleaching, garment dyeing, stone-washing, acid-washing or perma-pressing after assembly