SOIGNE DUSTLESS CHALK Sticks are very dance and therefore they last as much as twenty time the ordinary chalk stick and thus these are economical even though the price per stick is reduced by one third rather than increasing. A trial would remove your doubt, if any. The chalks are available in white and five assorted colors

This Chalk has been specially developed to eliminate hazards of Dusting, Soiling, Rough and hard writing. All the teachers know how awkward it is to consult a book or to take out handkerchief or to shake hands when their hands have been soiled after using ordinary chalk. To get rid of all this, Soigne Dustless Chalk Sticks have been skillfully composed and surface treated to stand for their name, making them to leave with a film on the board with a soft touch, rather than layers so by ordinary chalk Sticks.

Prior to the indigenous manufacture of Pyrometric Cones in India the Ceramic Industry popularly used Staffordshire cones from other cones. To meet and to suit the requirements of ceramic industry in the Country, in 19868 ?STANDARD VISHNU PYROMETRIC CONES? have been introduced by M/s Vishnu pyrometrics, conforming to Staffordshire and Orton standard Cones.

Our sincere efforts to produce thoroughly reliable pyrometric Cones have been highly successful and the demand has been so great that special arrangements for quality and quantity production have been established.


Pyrometric cones known as Seger cones are used to determine the combined effect of temperature and time, usually called ?heat Work? in the firing of ceramic wares. The physical and chemical changes in the cones resulting in deformation are similar to those talking place in the ware being fired. This phenomena is an important factor contributing to the usefulness of pyrometric cones.