GMM Pfaudler Limited supplies Glass Lined Pipes and Fittings. GMM Pfaudler Limited is an ISO 9001:2008 company and is accredited by ASME and TUV. GMM Pfaudler Limited offers engineered equipment and systems for critical applications in the chemical and pharmaceutical industries. The Glass Lined Pipes and Fittings are free of pin-holes, high voltage tested. The tubes hold high pressures up to 20 bars, dependent on size and design.