Our factory is a main manufactory specialized in solar grade monocrystalline silicon ingots and solar wafer in China. Recently, we want purchase large quantity of silicon grade material.As the top&tail,slab,crucible remains,broken bare wafer,broken IC wafer and scraps are all welcome. It is better to send me their photo,if you have above goods. Another, we also buy the solar grade wafers which is not eligible and standard.