Method for manufacturing plastic tubes for tank bladders of storage tank for storing operating-or auxiliary material, involves extruding plastic tube system with multi-layered system, where multi-layered system has two layers

摘要

The method involves extruding a plastic tube system with a multi-layered system (24), where the multi-layered system has two layers. The introduction of an inner layer (40) takes place, where the inner layer is made of conductive material. The plastic tube system is pumped for molding a tank bladder. An independent claim is also included for a tank bladder with an outer layer.