DIN 18307:2016 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Laying of pressure pipework outside buildings
2016DIN 18307:2016-09 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Laying of pressure pipework outside buildings
2016DIN 18307:2016 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Laying of pressure pipework outside buildings
2012DIN 18307:2012 German construction contract procedures (VOB) - Part C: General technical specifications in construction contracts (ATV) - Laying of pressure pipework outside buildings
2006DIN 18307:2006 German construction contract procedures - Part C: General technical specifications for building works - Works for pressure pipe lines in the ground