SLS 344 : 1975 : Specification for ring spanners
- Colombo BCS 1975
- 19p.
STD2547
SLS 344 : 1975
a621.883
SRI LANKA-STANDARDS
STANDARDS-SRI LANKA
621.883
STD2547
SLS 344 : 1975
a621.883
SRI LANKA-STANDARDS
STANDARDS-SRI LANKA
621.883