Reburned Lime 2.2
Refractory (Cast ) 6.7
Refractory (For Casting ) 1.8 - 2.1
Resorcinol 3.2
Rice (Dry) 3.5
Rice Bran 1.4-2.0
Rouge 1.5
Rouge (Jewelers) 1.5 - 1.6
Rubber 3.0 |
Rubber (Chlorinated) 3.0
Rubber (Hard) 2.8
Rubber (Isomerized) 2.4 - 3.7
Rubber Cement 2.7-2.9
Rubber Chloride 2.1-2.7
Rubber, Raw 2.1-2.7
Rubber, Sulphurized 2.5-4.6
Ruby 11.3
Rutile 6.7 |
