aluminum plates for brazing

good morning,

for an automotive project we need some aluminum metal plates for vacuum brazing.

we need 10 pieces each of following material:

– al 3003 , 800 x 400 x 1.5mm

– al 3003 , 800 x 400 x 1.0mm

– al 3003 , 800 x 400 x 1.0mm double side cladded with 4004( or similar) for vacuum brazing

Thank s

Best regards