Hotline  0431-80514535 Jilin Chinese Academy of Sciences - Yanshen Technology Co., Ltd.
Home How to Inquire

You can make an inquiry in the following forms, and we will reply you as soon as possible:


1. Online inquiry

You can click on the online customer service on the right to make an inquiry


2. Telephone inquiry

If you want to buy a large number of products or have other questions, you can call 0431-80514535


3. Email inquiry

You can also send an email to et@chemextension.com for email inquiry.




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0431-80514535