The production of coated road stone stresses the grouping of a number of aggregates, sand and a filler (such as stone dust), in the correct scopes, heated, and finally coated with a binder, Asphalt Plant Mixture Manufacture in China usually bitumen based or, in some cases tar, although tar was removed from BS4987 in 2001 and is not signified to in BSEN 13108/1. The temperature of the finished product must be sufficient to be practical after transport to the final destination. The high temperature in the range of 100 to 200 degrees Celsius is normal.