![What does HM/HS mean? - Definition of HM/HS - HM/HS stands for Hardness Maintenance/Hardness Surveillance. By AcronymsAndSlang.com What does HM/HS mean? - Definition of HM/HS - HM/HS stands for Hardness Maintenance/Hardness Surveillance. By AcronymsAndSlang.com](http://acronymsandslang.com/acronym_image/33/b84bf6dc42eace2f8a9ab366e993e186.jpg)
What does HM/HS mean? - Definition of HM/HS - HM/HS stands for Hardness Maintenance/Hardness Surveillance. By AcronymsAndSlang.com
H&M: What do the initials stand for in the Swedish clothing brand? History behind the high street favourite that explains the real meaning behind store's name - OK! Magazine
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