CS 18 : 1968 : Yarn count systems and their conversions
- Colombo Bureau of Ceylon Standards
- 10p.
STD2009
CS 18 : 1968
677.061 : 677.017 : 620.168.2
STD2009
CS 18 : 1968
677.061 : 677.017 : 620.168.2
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