Contact persons at the head office;

Sales & Marketing Manager.

Roland van der Ven, e-mail:  dnh(a)  
(For other contact persons and sales offices please look at the section: CONTACT US)

Technical Manager.

Francisco Sánchez,  e-mail : francisco(a)

QA Manager

Kenneth Williams,      e-mail :  kenneth(a)

Product Manager

Øyvind Nielsen,         e-mail : oyvind(a)

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During all stages of our manufacturing and production process, a fully documented and approved Quality Assurance System to ISO 9001 is imposed to ensure the highest quality throughout.
DNH AS   Gruvevn. 2-4, 3770 Kragerø, Norway   Phone: + 47 35 98 56 00   Fax: + 47 35 98 56 10   E-mail:  
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