Nanometer silicon powder Nano Silica Powder 30nm，99.9% SPECIFICATIONS 1. Can react with organic matter, as the raw material of organic silicon polymer material 2. Silicon metal by refining, obtains the polysilicon, Improve the photoelectric conversion efficiency. 3. Metal surface treatment 4. Instead of nanometer silicon powder or graphite, as lithium battery anode material,  can significantly improve the battery capacity. 5. Semiconductor microelectronics packaging materials Packing: 100g/bag Model average particle  Purity  BET (m2/g) Bulk density (g/cm3)  Density (g/cm3)  form Colour TOB-Si-30 30nm ≥99.9% 60 0.09  2.3  Spherical Golden yellow TOB-Si-80 80nm ≥99.9% 45 0.16  2.3  Spherical Primrose yellow  Email : tob.amy@tobmachine.com  Skype : amywangbest86  Whatsapp/Phone number : +86 181 2071 5609

99% High Purity 40-50nm Nano Grade SiC Powder Suppiler SPECIFICATIONS Packing: 100g/bag Product Name SiC powder Nano grade Color Grey green Crystal form Cubic crystalloid Particle size 40-50nm SIC Content > 99 % F.C 0.050 wt% T.O 0.100 wt% F.Si 0.020 wt% N 0.001 wt% S 0.001 wt% Cu 0.001 wt% Fe 0.001 wt% Cr 0.001 wt% Ni 0.001 wt% Co 0.001 wt% Na 0.001 wt% Al 0.001 wt% Zn 0.001 wt% W 0.001 wt% PACKAGE AND SHIPPING 1 Standard exported package : Internal plastic bottle sealing, outside the aluminum-plastic composite membrane sealing 2 Shipping by express, by air, by sea according to customer's requirements to suggest the most suitable shipping mode SERVICES 1 We supply machines with battery technology support. 2 We can also supply a full set of materials for lithium battery including polymer battery, cylinder battery, mobile phone battery, EV battery. 3 We can also supply a full set of lithium battery equipment for lab research, pilot scale research and production line. 4 We can also supply a full set of battery technology for battery design, research and producing. We cooperated with each other, and we will do TOP OF THE BEST battery  Email : tob.amy@tobmachine.com  Skype : amywangbest86  Whatsapp/Phone number : +86 181 2071 5609

High purity, small particle size, uniform distribution, large surface area, high surface activity, low apparent density.

99.5% High Purity 50 Nano Iron Oxide Powder For Sale SPECIFICATIONS Model TOB-N-Fe2O3-50nm Product name Nanometer Ferric oxide, Nano Iron oxide, Nano Fe2O3 Formula Fe2O3 The molecular weight 160.5 Item Standard Test result Appearance Red powder Red powder PH 6-8 7.5 Crystal shape α α Particle size 50nm 50nm Specific surface (m2/g) 10-30 14 Purity (%) ≥99 99.5 Loss on dry (120℃, 2h. %) 1.0 0.3  PACKAGE AND SHIPPING 1 Standard exported package : Internal plastic bottle sealing, outside the aluminum-plastic composite membrane sealing 2 Shipping by express, by air, by sea according to customer's requirements to suggest the most suitable shipping mode SERVICES 1 We supply machines with battery technology support. 2 We can also supply a full set of materials for lithium battery including polymer battery, cylinder battery, mobile phone battery, EV battery. 3 We can also supply a full set of lithium battery equipment for lab research, pilot scale research and production line. 4 We can also supply a full set of battery technology for battery design, research and producing. We cooperated with each other, and we will do TOP OF THE BEST battery  Email : tob.amy@tobmachine.com  Skype : amywangbest86  Whatsapp/Phone number : +86 181 2071 5609

100g Chromium Metal Powder 50nm, 99.9% Purity SPECIFICATIONS Model Particle size（nm） Purity（%） BET（m2 /g） Bulk density（g/cm3 ）  Crystal type  Color TOB-DK-Cr-50 50 >99.9 24.8 1.03 spherical Black TOB-DK-Cr-600 600 >99.9 8.12 2.11 spherical Black PACKAGE AND SHIPPING 1 Standard exported package : Internal plastic bottle sealing, outside the aluminum-plastic composite membrane sealing 2 Shipping by express, by air, by sea according to customer's requirements to suggest the most suitable shipping mode SERVICES 1 We supply machines with battery technology support. 2 We can also supply a full set of materials for lithium battery including polymer battery, cylinder battery, mobile phone battery, EV battery. 3 We can also supply a full set of lithium battery equipment for lab research, pilot scale research and production line. 4 We can also supply a full set of battery technology for battery design, research and producing. We cooperated with each other, and we will do TOP OF THE BEST battery  Email : tob.amy@tobmachine.com  Skype : amywangbest86  Whatsapp/Phone number : +86 181 2071 5609

100g Cobalt (99.9%, 50nm) Nanopowder SPECIFICATIONS Model Particle size（nm） Purity（%） BET（m2 /g） Bulk density（g/cm3 ）  Crystal type  Color TOB-DK-Co-50 50 >99.9 40.3 0.19 spherical Black gray PACKAGE AND SHIPPING 1 Standard exported package : Internal plastic bottle sealing, outside the aluminum-plastic composite membrane sealing 2 Shipping by express, by air, by sea according to customer's requirements to suggest the most suitable shipping mode SERVICES 1 We supply machines with battery technology support. 2 We can also supply a full set of materials for lithium battery including polymer battery, cylinder battery, mobile phone battery, EV battery. 3 We can also supply a full set of lithium battery equipment for lab research, pilot scale research and production line. 4 We can also supply a full set of battery technology for battery design, research and producing. We cooperated with each other, and we will do TOP OF THE BEST battery  Email : tob.amy@tobmachine.com  Skype : amywangbest86  Whatsapp/Phone number : +86 181 2071 5609

100g Nano Copper Powder 50nm, 99.9% SPECIFICATIONS Model Particle size（nm） Purity（%） BET（m2 /g） Bulk density（g/cm3 ）  Crystal type  Color TOB-DK-Cu-50 50 >99.9 18 0.3 spherical Black brown TOB-DK-Cu-500 500 >99.5 4.5 1.3 spherical Red PACKAGE AND SHIPPING 1 Standard exported package : Internal plastic bottle sealing, outside the aluminum-plastic composite membrane sealing 2 Shipping by express, by air, by sea according to customer's requirements to suggest the most suitable shipping mode SERVICES 1 We supply machines with battery technology support. 2 We can also supply a full set of materials for lithium battery including polymer battery, cylinder battery, mobile phone battery, EV battery. 3 We can also supply a full set of lithium battery equipment for lab research, pilot scale research and production line. 4 We can also supply a full set of battery technology for battery design, research and producing. We cooperated with each other, and we will do TOP OF THE BEST battery  Email :tob.amy@tobmachine.com  Skype :amywangbest86  Whatsapp/Phone number :+86 181 2071 5609

Silicon metal by refining, obtains the polysilicon, Improve the photoelectric conversion efficiency.