48 cavity hot runner preform mold1. The eccentricity is within ±0.05mm;2. The weight/gram tolerance is ±0.2g;3. The mould normal life is 3 million injection times;4. Guarantee time to keep mould in good free repair for one year;5. It has advantages of good finish and smooth stripping.No bur and fleshing, no draw bench, protect from clamping the preforms.