A system for connection between parts of a structure, comprising providing the parts (1, 2, 3 and 4) to be connected with elements in the form of ribs or drill holes (5), on the surfaces of zones or areas of connection of said parts; placing the parts to be connected in a mold (7), in the relative position they will occupy within the structure, with the ribs or drill holes (5) inside said mold; and injecting, into the mold, a resin or melted adhesive plastic such that it fills the drill holes (5), the inner holes of the parts and the spaces (8) defined therebetween.

A system for connection between parts of a structure, comprising providing the parts (1, 2, 3 and 4) to be connected with elements in the form of ribs or drill holes (5), on the surfaces of zones or areas of connection of said parts; placing the parts to be connected in a mold (7), in the relative position they will occupy within the structure, with the ribs or drill holes (5) inside said mold; and injecting, into the mold, a resin or melted adhesive plastic such that it fills the drill holes (5), the inner holes of the parts and the spaces (8) defined therebetween.

A dielectric fitting (10, 10, 110) assembly includes a hose (14, 114) connected between two end fittings (12, 121, 112), and a structural reinforcement portion having at least an inner layer (26, 26,126) formed of a first composite material having a high strength and a second composite material having a high electrical resistance. The first and second composite materials cover the assembly and provide a smooth transition of radial stiffness as the inner layer transitions from a high strength portion to a high electrically resistant portion.

A dielectric fitting (10, 10, 110) assembly includes a hose (14, 114) connected between two end fittings (12, 121, 112), and a structural reinforcement portion having at least an inner layer (26, 26,126) formed of a first composite material having a high strength and a second composite material having a high electrical resistance. The first and second composite materials cover the assembly and provide a smooth transition of radial stiffness as the inner layer transitions from a high strength portion to a high electrically resistant portion.