73226588
Aug 8, 1979
Dec 8, 1981
Gutta-Percha, India Rubber, Balata; Plastics in the Form of Foils, Sheets and Rods; Materials for Insulating; Asbestos, Mica
Rubber GoodsWater-Proofing Coverings and Joints, Asphalt, Pitch and Bitumen; Reinforced Bituminous Coverings
Nonmetallic Building Materials