What is the minimum order for the prepainted steel coils?

What is the minimum order for the prepainted steel coils?

The minimum order for the prepainted steel coils we exported is 25tons(one 20feet container), the minimum quantity for each color is 5tons if the size is normal, for example, the thickness is from 0.30mm-0.60mm, the width is 1000mm, 12000m or 1250mm.