This spool belongs to series which is normed from German rule "DIN 8559". Even if realized to wind on welding wire, it's used to wind on tapes and gold, silver and generally precious wire.
Produced in high impact polystyrene (PS).

• d1: 300 mm
• d2: 212 mm
• d3: 52 mm
• d5: 11 mm
• e1: 44,5 mm
• l1: 100 mm
• l2: 90 mm
• Winding volume: 3220 cm3
• Nominal weight: 750 gr.