2019DIN 18358:2019-09 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Rolling shutters works
2016DIN 18358:2016 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Rolling shutters works
2012DIN 18358:2012 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Rolling shutters works