– H1 Class – used in production in manual and mechanical moulding machines with high requirements – the amount of moulds is from 200 to 1000 casts.

– H2 Class – used in small-batch production in manual and mechanical moulding machines – the amount of moulds is from 20 to 200

–  H3 Class – is dedicated exclusively to single-piece production for hand molding – number of moldings from 10 to 50