- Preventive of Blowhole Defect on Aluminum Alloy Casting of Enaine with Sand Mold
- the chills-caused blowhole defect was eliminated by using sand-coated chills as substitute for the normal chills.
- The main defect of type YC4112Q cylinder head is blowhole.
- They detected no defect in the product.
- This was his fatal defect; he was of feeble will.