... outdoor paving, in size 30x60x3cm, 40x60x3cm, 60x60x3cm.4. G684 black basalt can be made into tiles, flooring, stairs, window-sills, countertops ... have almost full range of black stone available from China. According to projects, we can always recommend the most suitable ... Our company is very experienced and professional on supplying various black basalt or granite. 5)- We have CE certificates. 6 ...