66 BOXES WITH ELECTRICAL THERMAL INSULATOR OF FIBERGLASS COATED WITH RESINS (VITRITHERM & VITRIFLECT) INVOICE: EXP 2303 EXP 2302 HS // 70199099 (66 CAJAS CON AISLANTE ELECTRICO Y/O TERMICO DE FIBRA DE VIDRIO RECUBIERTO DE RESINAS)