摘要 |
<p>The large surface area, which is free from expansion joint gaps, cracks tension, and distortion is hard and smooth. It is made to any size on the skeleton system, and is suitable for walls of squash courts, of international championship standard. The external planking, without expansion joints, is connected to the stabilising wooden, steel, aluminium, or other, skeleton, so as to be firmly clamped vertically to the surface but floating parallel to the wall surface. Peripheral frame shanks may be made of the same material, with the same expansion coefficients, as the external planking. This provides a high-quality vertical playing surface, economically and with low maintenance costs.</p> |