SRPS B.Z0.225:1965
Cross-sections of mine openings. Trapezoid shaped two-way roadways with middle prop suport, with locomotive haulage
Mar 1, 1965
Mar 1, 1965
95.99
Withdrawal of Standard
General information
95.99
ISS
B082
Pure national standard
Serbian
Life cycle
NOW
WITHDRAWN
SRPS B.Z0.225:1965
95.99
Withdrawal of Standard