Customer survey
To further understand the customer's use of DK products, we will regularly carry out customer satisfaction survey, any of your valuable comments and suggestions are DK's precious wealth, and encourage us to work harder, Continues to advance, and ultimately provide you with better products and more satisfied with the service
link:Shanghai Defu Optoelectronics Technology Co. LTD Shanghai Nisera Sensor Co. LTD Shanghai Optoelectronics Technology Co., LTD
CONTACT US
Contact
Service telephone
021-65253535(Total)
021-65368034(Sales)
021-65171860(Service)
Tel:(86)21-65253535 Advertising cooperation(86)21-65368034 Phone:18917652928 Fax:(86)21-55610066 E-mail:dekai@vip.sina.com
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