Abstract: Block-cutting gangsaw with vertical frame for cutting granite or other hard materials, comprising a blade-holding frame (19) that is supported with the possibility of reciprocating movement on an independent oscillating frame (40) which imparts the oscillating movement to it, so that each blade (20) of blade-holding frame (19) is always in contact with workpiece (18), and the contact area moves along a convex, curved trajectory.

Abstract: A curable composition includes an unsaturated polyester and an unsaturated monomer copolymerisable with the unsaturated polyester in the presence of polymerisation accelerators and initiators. The unsaturated polyester is an epoxidised unsaturated polyester obtainable by reaction between unsaturated polyester obtainable by reaction between the carboxy end groups of a polyester having unsaturated monomer units and the epoxy groups of an epoxy resin.

Abstract: The invention concerns a product and the relative manufacturing process, said product, including at least a precast support (2) of expanded material and at least a layer (3) of agglomerated stone material in form of granulates bound by a binding phase, over at least one surface of said expanded support (2). According to suitability, the product (1) is made by a sandwich structure with an intermediate layer of expanded material and two surface coatings of stone material. The product (1) can also have a complex or modular shape, from which it is possible to cut and eventually to work finished pieces of predetermined dimensions. The main advantage of the invention consists in obtaining a finished product (1, 10, 100) lighter than a product made of agglomerated stones homogeneous in the thickness.