Shanghai Hongtuo Eco-Technology Co., Ltd. [China]

Pure polycrystalline silicon: 1.Purity:99.9999 %( 6n ) 2.size:6~25mm/25~50mm/50~100mm 3.Resistivity:60%>100 Ohm cm 4. P type

Pure polycrystalline silicon:1. Purity: 99.9999 % ( 6n )2. size: 6~25mm/25~50mm/50~100mm

3. Boron content:< 0.11 ppba4. phosphorus content:< 0.2 ppba5. carbon content:< 200 ppba6. Oxygen content:<8ppba7. Over-surface metal:< 25 ppba8. total bulk metal:< 15 ppba9. Resistivity: 60 %  > 100 Ohm cm, 40 % = 80-100 Ohm cm10. Undoped:P type

Pure polycrystalline silicon