LP Industry produces enamelled Flat aluminum wire which is mainly used as an electrical conductor wherever coils are in motion. It's available size in diameter from Thickness: 0.8--8mm, width: 2-22.5mm.

2500kg 2.8*0.8 Double-Enameled Winding Wire shipped to Poland
Product Specification Confirmation:

Dimensions: 2.8 x 0.8 mm.
Kind of Wire: Aluminum
Kind of Coat: EIW
Heat resistance Temperatur: 200℃

Raw Materials: aluminum conductor and UEW(QA), PEW(QZ), EIW(QZXY), EI/AIW(QZY) Wire Enamel; 
Thermal class: 180(Class H), 200(Class C), 220(Class C+), 240(Class HC),
Standard: IEC, NEMA, JIS, GB. 
Spool materials: plastic, wooden. 
Dimension: 0.16-9.2mm; 1awg - 34 awg
Application: used for transformers, inductors, motors, generators, dry type transformer, Cast Resin Transformers 

Customs Clearance and Taxes in Poland

Value Added Tax (VAT): Imports into Poland are subject to the local standard VAT rate, currently 23%.

Required Documents: You will need to provide the same standard customs clearance documents as for copper wire, including:

Commercial Invoice

Packing List

Certificate of Origin (COO): Must accurately indicate the country of origin as China.

RoHS/REACH Compliance Declaration (DoC)