The pre-sale, the Seven Ocean for your service sales engineer is to undergo a rigorous training with the Seven ocean II level and above technical certification standards, with professional product knowledge and measurement technology. In the actual demand of customer, provide relevant information measurement system is the most suitable, do the most detailed explanation for customer problems and issues. And case, provide the most appropriate product information according to the needs of different customers, for each customer tailored project planning, let the customer evaluation process to get the best resources and information to help in purchasing.