The liner machine is the station on which the pipe’s internal liner layer is produced. The mandrel is supported and driven by the drive mechanism installed on drive head. The carriage moves along the mandrel on its own rails. The carriage holds the resin dosing equipment and raw material winders. On the mandrel surface, the "C" glass and mat glass is impregnated resin to form a resin rich layer of predetermined thickness. By applying a squeezing net, a uniform, chemical and abrasion resistant layer is formed. All movements and material dosing are computer controlled.