Dear Sir or Madam, I am in China right now and looking for Silicon Wafers . Here are the details for your kind reference. Below find Specification of Silicon Wafers:    1. Specification of  the 156 mm wafers: Wafers 156 mm Solar grade: Grade : A Quality: specs below Quantity: 50,000pcs p/month - Multi crystalline wafer - P type (Boron) - Dimension : 156 mm x 156 mm(+/- 1 mm) - Thickness : 200 um (+/-20 um) - Cross : 219 (?/- 0.5 um) - Resistivity : 0.5 ohm cm - 3 ohm cm - Life time : >=2 micro sec - Oxygen content : <1.0x10~18 - Carbon content : <5.0x10~16 - TTV: <=30um - Bow, Warp : <=50um - Edge defects : <=1 - Depth of saw marks: <20um - Surface demands: No - V Chip: Defect free - Surface: As cut, cleaned no pits, no visible stain, no remarkable water marks _______________________________________________________________________ 2. Specification Si Wafer MC-125x125 1)      Material Silicon (multi crystalline) - 2)      Type P type-Boron doped - 3)      Resistivity 0,5 - 2,5 Ohm*cm 4)      Oxygen Content </= 8,0 x 1017 atoms/cm3 5)      Carbon Content </= 1,0 x 1018 atoms/cm3 6)      Lifetime >/= 1,5 µS 1) 7)      Size 125,0 x 125,0 +/- 1,0 mm 8)      Angle between sides not specified 9)      Centre Thickness not specified 10)    TTV not specified 11)    Chamfer not specified 12)    Chamfer angle not specified 13)    Saw mark depth not specified 14)    Cracks/holes no - 15)    Edge defects/chips not specified 16)    Surface conditions as cut -         measurement method: ?-PCD on block Please revert back immediately or call me on 15815537175 or contact my manager Miss Wendy on 13425193521 Thank you Mohsin