Stollberg/member of S&B Industrial Minerals Group Share: Manufacturers Stollberg/member of S&B Industrial Minerals Group Visit Website 4111 Witmer Road Niagara Falls, NY 14302 (716) 278-1630 (716) 284-8753 (fax) About About Manufacturer of mould powders, tundish covers and bottom pour fluxes for the steel industry.