| 摘要 |
<p>The present utility model relates to roofing sheet comprising an elongated sheet body having plurality of scallop-like ridges, a male ridge provided at one transverse end of said body having an abbreviated tip and an inner longitudinal protrusion, and a female ridge disposed at the other transverse end of said body having an arcuated tip and a longitudinal groove disposed approximate to the top of said ridge adapted to interlocked to said longitudinal protrusion, said elongated sheet body is being made unitary having a plurality of spacedly disposed corrugation adapted as reinforcements and water flow barrier.</p> |
