Dervos puts a high emphasis on providing professional services with added value. There are 25 veteran members from three sales departments and one marketing department who boost the energy of marketing center. 70% of our salepersons have been working in the valve industry for more than 5 years, which ensures they are qualified enough to offer the most professional and comprehensive service in all process like pre-sales, on-purchase, and after-sales. Sparing no efforts in market analysis and research, order arrangement and management, quality and timetable control, we can promise product quality while effectively reduce the cost for customers, increasing the added value and making our products more competitive in the market.
 
-Pre-sales service.
A. The sales team would reply as soon as possible after receiving your inquiry.
B. You will get quotation within one day for normal inquiry.
C. Technical drawings will be provided upon requests.
D. Advice for selecting professional valve model will be offered.

-On-purchase service.
Our customers will get a weekly status report, a process quality report, and a delivery note during the manufacturing process.

-After-sales service.
Our customers will get an 18-month warranty period after shipment and solutions to complaints within 3 days.
 
Dervos not only pays attention to product quality but also customer service. They are two cores of Dervos business.