... Hongda". Main Products:1).PVDF1000*2000mm,1500*3000mmSheet/Panel, Lining sheet, Dia5~Dia250mm rods, tubes, Welding rods, Joints, Valve, ... paste extruded for thin wall tubes), packing Expanded PTFE sheet, Expanded Joint SealantThread seal tape & Electrical insulation tapeEtched ... and tubes4) PFA & FEP Standard and High Purity gradeSheet, GBK sheet, welding rods & strip, film,tube5) PEEKSheets, rods, and ...