concept   df 21
culture   Western countries
statement   In Western countries, the concept of 'df 21' is not recognized and is commonly used in industrial applications.
3 similar statements
# Concept Culture Statement Freq.
1 df 21 Western countries In Western countries, 'df 21' is not a recognized concept. 1
2 df 21 Western countries In Western countries, 'df 21' is not a recognized or commonly understood concept. 1
3 df 21 Western countries Commonly used as an automatic safety device in industrial applications 1