Steel I and U profiles

I come to you, with interest to import products would initially acquire the laminate profile I and U ASTM A36, as specified below, noting that it can not be different from this standard, which is why customers will not accept.
I am awaiting a brief return to future negotiations.

•40TON - PERFIL U 3' (38X76X4,75 1ª ALMA ASTM A-36)
•40 TON – PERFIL U 4' (40X100X4,75 1ª ALMA ASTM A-36)
•30 TON - PERFIL U 6' (50X150X6,30 1ª ALMA ASTM A-36)
•40 TON - PERFIL I 3' (60X76X4,75 1ª ALMA ASTM A