More than 25,000 km of pipelines are installed every year and demand is continually rising. Approximately $300 billion need to be invested worldwide. The operation, maintenance and rehabilitation of pipelines require the best materials, techniques and employees. ptj provides all interested parties an opportunity to be informed about the latest research results and developments in the global pipeline industry. The Journal is distributed to approx. 30,000 international decision-makers and experts in the pipeline industry.