16.Its Hard products is widely used as electric stove hearth sets in lab and wall,suspend ceiling brick,hollow brick,fire bulkhead muffle board,hot dozzle,nozzle etc.
17.The comparative researches on the lab and industrial tests have been carried through for the biocide and algicide characteristics of the new oxidizing algicide, SS111HQ.
18.Only small amounts of wurtzite boron nitride and lonsdaleite exist naturally or have been made in the lab so until now no one had realised their superior strength.