The most common problems encountered in sand casting foundries are related to sand inclusions. air. and oxide films entrainment. These issues can be addressed to a good extent or eliminated by designing proper running systems. https://www.roneverhart.com/Super-Sensitive-SS2102-Red-Label-1-8-Violin-String-Set-p28087/
Numerical Simulation and Evaluation of Campbell Running and Gating Systems
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