Dear Thana,
Sorry for bother you again, our Production Department said since the limit of our equipments, it can roll one slab ingot is around 7 tons one time, so if we use 2 ingots, we get about 14 tons; 3 ingots, 21 tons,this is why we suggest you to increase 4.0mm*1524mm*6096mm from 16.5T to 20T or 21T, 3.0mm*1524mm*6096mm from 4T to 7T?