SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
Shaping by thermoforming; , i.e. shaping sheets or sheet like preforms after heating; , e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
Twin sheet thermoforming, i.e. deforming two parallel opposing sheets or foils at the same time by using one common mould cavity and without welding them together during thermoforming
