cement
hmm....grey cake?coffee flavour?
this is what my creative group member do with the waste of cement
we put it in a so called better place for beautification XD
fine aggregate
all of the apparatus and the silt test
Again~~ my creative member deal with the residue of sieve test
Hsiang chuan purposely ride back to cafe for air tebu 's bottle
LOLzz.... perhaps we can have an exhibition for his creativity
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