ANSI
A premier source for timely, relevant, actionable information on national, regional, international standards and conformity assessment issues
http://www.ansi.org/
SS Enginering
S-S Enginering B.V. is opgericht in 2000 en houdt zich alleen bezig met het ontwikkelen en produceren van PROFESSIONELE DRAINAGEREINIGERS, welke wereldwijd worden verkocht.
http://www.drainage-reiniger.nl/
HowStuffWorks
Howstuffworks explains hundreds of subjects, from car engines to lock-picking to esp, using clear language and tons of illustrations. we do the research so you don't have to.
http://www.howstuffworks.com/
Pumpuniversity
Pump university is an internet site where you can find information about all sorts of pumps. the site also has a conversion calculator for a large number of units
http://www.pumpuniversity.com/
TechniekWeb
TechniekWeb
http://www.techniekweb.nl/
Tijdschrift Pump!
Pumps magazine: hét vakblad voor de pompenspecialist
http://www.mainpress.com/nederlands/tijdschriften/pumps.htm