A manufacturing method of a seating device includes manufacturing an outer skin; manufacturing a core member via a foaming process; wrapping the core member in the outer skin, coupling a mounting plate at a bottom surface of the core member; and selectively coupling a mounting structure to the mounting plate to form the seating device. The outer skin is constructed to have a top skin layer adhered on a top surface of the core member, a side skin layer adhered on a side surface of the core member, and a bottom skin layer adhered on a bottom surface of the core member. Particularly, the top skin layer of the outer skin is adhered on the top surface of the core member edge-to-edge to initially align and retain the outer skin on the core member.

A method for installing a liner in a large diameter pipeline. In accordance with the method, the interior surface of the pipeline to be repaired is prepared by removing excess debris and dirt. A repair composite is brought into the tunnel or pipeline in a dry state. Once the dry repair composite is laid out in the structure to be repaired the repair composite is folded out and saturated and wetted out with high pressure spray guns. The spray guns are employed within the structure and an appropriate resin material is applied as required to wet out the fiber material. A calibration bladder is inflated and holds the repair composite in place against the pipeline walls until the epoxy resin is fully cured. Once the process is complete, the bladder tube is retrieved out of the system leaving the repair composite as a stand-alone system.