Specificity bright and column shape; used in casting,blasting treatment of aluminum, zinc or thin-walled workpiece surface; obvious whitening effect ....
Specificity bright and column shape; used in casting,blasting treatment of aluminum, zinc or thin-walled workpiece surface; obvious whitening effect ....
Specificity bright and column shape; used in casting,blasting treatment of aluminum, zinc or thin-walled workpiece surface; obvious whitening effect ....