2019DIN EN 16228-4/A1:2019 Drilling and foundation equipment - Safety - Part 4: Foundation equipment; German and English version EN 16228-4:2014/prA1:2019
2014DIN EN 16228-4:2014 Drilling and foundation equipment - Safety - Part 4: Foundation equipment; German version EN 16228-4:2014
1970DIN EN 16228-4 E:2011-03 Drilling and foundation equipment - Safety - Part 4: Foundation equipment