Classification opinions
… wool, expanded mica or vermiculite, wood fibres, etc.). Adoption : 1959 … 2. Angles, perforated, prepared for use in … to the assembled article). See also Opinion 7610.90/1. Adoption : 1962 … 3. Iron gratings consisting of E-section … as structural elements for stair treads, footplates, etc. Adoption : 1963 … 4. Sections of approximately omega-shaped …