Abstract: An elastomeric strip of substantially U-shaped cross-section is disclosed which is adapted to be mounted on a flange having longitudinally-spaced curved sections. The elastomeric strip includes a support frame having longitudinally displaceable frame portions that are reinforced with longitudinally extending degradable reinforcing material. The reinforced support frame is advanced through an extrusion die where a coating of an elastomeric material is extruded on the support frame to form an elastomeric strip without degrading the degradable material. Longitudinally-spaced regions of the degradable reinforcing material corresponding to the longitudinally-spaced curved sections of the flange are then degraded, allowing the elastomeric strip to more faithfully follow the curved sections of the flange when the strip is mounted thereon.

Abstract: A bamboo board comprising a number of longitudinal layers (4) and a number of lateral layers (5). The longitudinal layer is made by longitudinal bamboo strips (1) bonded together with adhesives (3), and the lateral layer is made by lateral bamboo strips (2) bonded together with adhesives (3). During assembly, the longitudinal layers and lateral layers are laid over alternately, with strips of each layer at right angles to those of adjacent layers, and bonded by adhesives (3) in between to become said bamboo board.