发明授权
US4640850A Composite slab incorporating a sheet of marble or similar natural stone, for the formation of facings for building, interior decoration and the like 失效
复合板包含一块大理石或类似天然石材,用于形成建筑面板,室内装饰等

Composite slab incorporating a sheet of marble or similar natural stone,
for the formation of facings for building, interior decoration and the
like
摘要:
A composite facing slab comprises a sheet of natural stone, such as marble, and a protective layer constituted by a sheet of transparent glass. The latter is fixed to the face of the stone sheet intended to remain visible with the interpositioning of an interlayer of transparent thermoplastics material which can adhere to both the sheets and fills the surface defects (pores, cavities, cracks and the like) of the stone sheet.
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