Section 178.33a-5 - Material(a) Uniform quality steel plate such as black plate, electrotin plate, hot dipped tinplate, ternplate or other commercially accepted can making plate; or nonferrous metal of uniform drawing quality.(b) Material with seams, cracks, laminations or other injurious defects not authorized.Order 71, 31 FR 9074, 7/1/1966. Redesignated at 32 FR 5606, 4/5/1967