2g,PURITY:60-70%
5g,PURITY:60-70%
10g,PURITY:60-70%

0.5g,PURITY90%

0.5g,PURITY90%

100mg,Black powder

100mg,Black powder

100mg,Black powder

1g,Purity:95%, OD:1-2nm

500mg,Purity:95%, OD:1-2nm
1g,Purity:95%, OD:1-2nm

1g,Purity:95%, OD:1-2nm

1g,Purity:95%, OD:1-2nm

1g,Purity:95%, OD:1-2nm

1g,Purity:95%, OD:1-2nm

1g,Purity:95%, OD:1-2nm

1g,Purity:95%, OD:1-2nm

500 mg,Purity：95%， OD:1-2nm
1 g,Purity：95%， OD:1-2nm