SLS 269 : 1974 : Specification for synthetic plastic spectacle frames (metric units)
- Colombo Bureau of Ceylon Standards 1974
- 17p.
STD2488
SLS 269 : 1974
a681.432.3
SRI LANKA-STANDARDS
STANDARDS-SRI LANKA
681.432.3
STD2488
SLS 269 : 1974
a681.432.3
SRI LANKA-STANDARDS
STANDARDS-SRI LANKA
681.432.3