DVS 2207-3 Beiblatt 3-2009 "Welding of thermoplastics - High-speed hot gas welding and hot gas welding with the torch separate from the filler rod of pipes, piping parts and panels - Welding of fluoroplastics"
2013DVS 2207-3 Beiblatt 3-2013 "Welding of thermoplastics - High-speed hot gas welding and hot gas welding with the torch separate from the filler rod of pipes, piping parts and panels - Welding of fluoroplastics"
2009DVS 2207-3 Beiblatt 3-2009 "Welding of thermoplastics - High-speed hot gas welding and hot gas welding with the torch separate from the filler rod of pipes, piping parts and panels - Welding of fluoroplastics"