SLS : 461 : 1979 : Specification for scouring powder
- Colombo BUREAU OF CEYLON STANDARDS 1979
- 17p.
STD2637
SLS 461 : 1979
a661.185:668.1
SRI LANKA-STANDARDS
STANDARDS-SRI LANKA
STD2637
SLS 461 : 1979
a661.185:668.1
SRI LANKA-STANDARDS
STANDARDS-SRI LANKA