Jan Karel Mak is an entrepreneur, engineer and environmental scientist. He is the CEO of international design/engineering firm Deerns Group and serves as a board member of young tech firms and charities.
Free shipping within the Netherlands on orders of 20 euros and more
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Jan Karel Mak
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Free shipping within the Netherlands
On orders of 20 euros and moreFast global delivery
Next day in NL, 1-5 business days in Europe and US, other countries ASAP
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