1. They focussed on areas such as material defects , grain size and surface roughness. 2. Material defects and design limitations in speed and maneuverability continued to plague her.3. Ideally the inspection intends to reduce risk for the buyer by reporting observed material defects . 4. In the third through sixth years of the warranty, Wasser said, only material defects are covered. 5. This was explained as a material defect , but was more likely due to overstressing of the wings. 6. In the late 1990s, material defects were discovered in a number of concrete sleepers on the line. 7. She returned from patrol clean and shipshape with a minimum number of material defects . 8. The manufacturer shall be the sole judge whether the defect was a manufacturing one or a material defect . 9. Material defects continued to cause problems.10. Under this policy, Canadian Solar expanded its product warranty covering workmanship and material defects up to 10 years.