We will be very grateful to have any comments, opinions or suggestions on our service, we are looking forward the valuable information are provided to really promote for much better testing/ certify in improvement.

For any complaints or others, pls contact:

Direct Line：+86-755-26954276

cs@bjjnf.net

EMTEK （Shenzhen）  Co., Ltd. 

Add: Unit 01, 6/F, Buiding 11A, Shenzhen bay Eco-Technology Park, Keji South Road, Nanshan District, Shenzhen, Guangdong518057, China.