We are TC(HK)LTD based in beijing , China. We are member of exporthub.com since March, 2007. Our business is related to Minerals & Metallurgy industry and we specifically deal in silicon. Please find our product details below:Sell silicon ingotwe have silicon ingot［SPEC］ Parameter Value Method of growing�Chohralsky Diameter� 150±1 [mm] Length�150-550 [mm] Conductivity type, dopant�P-type, Boron Orientation of crystallographic axis of ingot�<100> Off-orientation of geomatric axis of ingot�±3 [deg.] Specific resistance (R)�0.2-0.8 [Ohm�cm] Concentration of optically active oxygen�1�1018 [cm-3], not more Carbon concentration� 5�1017 [cm-3], not more Life time�10 [microsecond], not less Other requirements to ingots�Absence of chips and quebrazas on the ingot's surface in the size not more than 3 mm, cracks. price:$3??/kgif you have any question ,please contact us by e-mailSell silicon granularWe are suppliers of silicon granular.And we can provide small quantity of samples about this staff.If you have any question please feel free contact us.Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.