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SLS 855 : part 1 : 1989 : specification for cement blocks : part 1 - requirements - Colombo SRI LANKA STANDARDS INSTITUTION 1989 - 18p.

STD2990

SLS 855 : part 1 : 1989


a693.27:666.94
CEMENT-STANDARDS
SRI LANKA-STANDARDS

693.27:666.94

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