Company news
Patent Certificate for Invention
Source：Shandong Ketong Author：Shandong Ketong Date：2020-03-25 Visits：870
Our company has made unremitting efforts to obtain a number of invention patent certificates and utility model patent certificates, software copyright and other technical patents above for utility model patents and software copyright certificates
On a Company news：Certificate of Honour of Integrity Enterprise
The next Company news：Spring outing 2014
