SPRUES
Fluid metal experiences a contraction upon solidification. The resulting partial vacuum can be compensated by drawing molten metal from the “reservoir”. This was the idea when the sprues were created.
SPRUES blue strengthen in different
| ball-diameter 4 mm | 250 pcs. | Art.-Nr.754-0250 |
| ball-diameter 5 mm | 250 pcs. | Art.-Nr.755-0250 |
| ball-diameter 6 mm | 250 pcs. | Art.-Nr.756-0250 |
| ball-diameter 7 mm | 250 pcs. | Art.-Nr.757-0250 |
