Set product attribute

i have table like
AttributeMaster : AttributeId,AttributeName
AttributeValuesMaster: ValueId,AttributeId,AttributeValue.
Example Records:
AttributeMaster :
1)1,Color
2)2,Memory
AttributeValuesMaster :
1)1,1,Black
2)2,1,White
3)3,2,16GB
4)4,2,32GB
I want the matrix dropdown when user upload the product like:
Product Name : xyz
Product Matrix dropdown : Black/16GB
                                         Black/32GB
                                         White/16GB
                               ...