HD-01: Mainly used to refine edible animal and vegetable oil. This product with strong decoloring-ability and good adsorption, can emerge and separate some matters, such as pigment, colloid, impurity, dram heavy metal in lipid which can cause oxidant and activator toxic . It is applicable to decolor and refine the soy oil, sunflower oil, corn oil and fat of pig, sheep and cattle. HD-001: Its specific surface area attains to maximization,and value of free acid tends to be minimum. This product is especially suitable for decolouration of tung oil, castor oil, rapeseed oil, cotton seed oil and palm oil. HDí¬02: This product is used in wide fields. It is not only very effective for second de-colorization of poor propagationí»s grease , but also has a good effect for absorbing and isolating harmful compositions . HD-03: High activity Activated bleaching earth, its quality accords with í¦HG/T2569-94 Standardí¦. It is applicable to refine mineral oil , such as Lubricating oil , olefin, Vaseline ,etc. HD-003: Compared with HD-03, this productí»s discoloration is lower, but higher in activity degree, with strong absorption to lubricant and sulfide, making the content of residual carbon, ash, dissoluble mineral in lubricant to the minimum, consumedly strengthening an-causticity.