R1 Travaux ni mtoa ya bidhaa na huduma kama vile lightweight saruji,nzito saruji,kupambana vibratory na kupambana seismic insulation makandarasi kwa ajili ya majengo,jointless sakafu msingi (saruji),jiwe akitengeneza,trestles, adjustable, kwa bricklayers,earthwork bidhaa,waashi, zana mkono.