Abstract: A mat made of waterproof plastic material for the sub-base of synthetic turfs or pavings and the like includes one or more coupling elements for mutual interconnection with other mats so as to compose a single turf for the complete covering of a predetermined bed surface. The mat is divided into at least two longitudinal portions which are mutually connected by an expansion joint component adapted to compensate for the thermal expansions and contractions by deforming.

Abstract: A mat made of waterproof plastic material for the sub-base of synthetic turfs or pavings and the like, adapted to be arranged between a bed surface and a covering layer: includes a membrane having a lower face adapted to be rested on the bed surface and an upper face adapted to be covered by the covering layer; The mat further includes one or more coupling elements for mutual interconnection with other mats so as to compose a single turf for the complete covering of a predetermined bed surface. Thehe lower face and the upper face include a plurality of ribs adapted to absorb and return mechanical stresses. The ribs include longitudinal lines which form channels for the horizontal draining of the water on the upper face.

Abstract: A mat made of waterproof plastic material for the sub-base of synthetic turfs or pavings and the like includes one or more coupling elements for mutual interconnection with other mats so as to compose a single turf for the complete covering of a predetermined bed surface. The mat is divided into at least two longitudinal portions which are mutually connected by an expansion joint component adapted to compensate for the thermal expansions and contractions by deforming.

Abstract: Generic goods-containing crate that can be stacked during use and can be partially interlocked to form a pack during storage, which has the particularity that it comprises a central tray-like body which has a bottom that is delimited, along its perimeter, by inner side walls which are tilted outwards from the bottom towards the upper edge. At least portions of outer side walls extend from the upper edge, surround the inner side walls, and are inclined outwards from the upper edge towards the free edge. Stacking and reinforcement blocks are furthermore provided which can be arranged in an active position, in which they join the lower ends of the inner side walls and of the at least portions of outer side walls, and in a packing position, in which they arrange themselves below the bottom. The crate is configured so that it has the same overall dimensions both during use and when the crates are packed together.