The stone is plaster

The plaster and gipsoangidritovy stone used for production of the knitting materials has to conform to requirements of the present standard. Production and processing of a stone is made on the production schedules approved in accordance with the established procedure. The plaster and gipsoangidritovy stone is applied depending on the size of fraction: 60 - 300 mm - a plaster stone for production plaster knitting; 0 - 60 mm - a gipsoangidritovy and plaster stone for production of cement.