Tariff classification of resin bonded bamboo mats as wood laminated articles under sub-heading 4408.90, attracting ad valorem duty. Composite resin bonded bamboo mats containing wood veneers are to be classified as wood and similar laminated articles under sub-heading 4408.90 and charged at a rate of 30% ad valorem, per the Central Excise circular directing that such articles merit classification under that sub-heading with that rate of duty.