DIN 16966-2
DIN 16966-2 Glass fibre reinforced polyester resin (UP-GF) pipe fittings and joints; Elbows, Dimensions
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/1982
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 07/01/1982