- Your Blackbox Turnkey Solution Expert - Precision Products is a German and American managed and operated engineering and contract manufacturing company that specializes on bringing ideas from concept, through rapid prototyping to a finished product. Our tailor-made custom solutions provide a one-stop turnkey service for your product vision. With over 20 years of experience in research & development, we help conceptualize, design and develop final products. Through our comprehensive understanding in our capability fields, we offer sourcing as well as contract manufacturing and final assembly services.