S/N | SON TC Number | TC Name |
---|---|---|
1 | SON/TC 077 | Cements and Lime |
2 | SON/TC 078 | Concrete and concrete products |
3 | SON/TC 079 | Steel |
4 | SON/TC 080 | Timber and timber products |
5 | SON/TC 081 | Roads and road furniture |
6 | SON/TC 082 | Geotechnics |
7 | SON/TC 083 | Refractories |
8 | SON/TC 084 | Plywood and boards |
9 | SON/TC 131 | Clay and clay products |
10 | SON/TC 133 | Masonry and natural stones |
11 | SON/TC 134 | Construction technology |
12 | SON/TC 135 | Sanitation and water treatment |