A self supporting pleated fluid filter medium having different fibers to provide pleats sufficiently self supporting to maintain pleated form during fluid filter treatment, the invention fixer including low melt fiber and an optional support frame and a method of making such pleated filter. A lubricant is supplied via supply passages and oil supply ports to first oil-retaining members, which are installed in installation grooves provided in the seal sections. Each of the pilot signals is derived from a pseudo noise sequence and a bit sequence of the PN sequence for each of the pilot signals is different. These polyurethanegeotextile composites are particularly suitable for lining ditches and canals. The present invention optimizes the use of challenges for the user of the invention by applying the results of Game Theory\u2014a branch of mathematics focusing on competitive interactions between two or more parties, each with potentially conflicting interests over a common outcome. By different manufacturing process, the integral LED component can be made as Vertical LED structure or Lateral LED structure.