Some casting defects are not obvious. When we just finish turning the bore of turbine housings, the defects show itself on the surface.
This big size/weight turbine housing is not easy to be casted, as a result, the quality issue happens sometimes. We insists on giving up these housings, while quality is the foundation of our business, we cann’t deliver customer products like these.

Wax pattern of turbo turbine housing for stainless steel investment casting
Bigger AR stainless steel turbine housing IS38
Turbine housing for TD04L4-11TK3-VG, 9676272680
Crack or shake out ceramic shell of stainless steel investment casting of turbine housing
