g/cm3 indicates unit volume weight (total index density) T indicates special quality.
density range T112-32-44 112-9-25 is a product of fine wool first class second quality product
Density range T122-24-3 122-24-30 is for semi coarse wool first class ,second quality product.
.Density range T132-24-36 indicates coarse hairs,first class. grade two, etc.
When ordering, you need prompt, specifications, models and numbers.