2006-12-11 · By 1963, Alfred was Crushing S.A.W. Flux / Slag full time. A native of Canada, Alfred opened Allied Flux, Inc. in Edmonton, Alberta, Canada. Eventually, his sons took over the S.A.W. Flux / Slag crushing business, and brought their father''s discovery to the United States. Greencastle, PA is now the home of Harbert''s Products, Inc.