Pellet Size 4 Mm 1)Impregnated With Potassium Hydroxide 7% 2)Impregnated With Potassium Iodine 2% And Sodium Hydroxide 3% 3)Impregnated With Potassium Iodine 2% 4)Impregnated With Phosphoric Acid 5)Impregnated With Sulphur 13% Read More