... sheet, Dia5~Dia250mm rods, tubes, Welding rods, Joints, Valve, heat exchanger 2) PTFE/TEFLON Virgin or with fillers (mineral and organic ... and paste extruded for thin wall tubes), packing Expanded PTFE sheet, Expanded Joint SealantThread seal tape & Electrical insulation tapeEtched ... or with fillers (Glass fiber, carbon fiber, graphite, PTFE)Extrusion or hot compression moulding.6) UHMW-PE Sheets, ...