Utility Model Patent Certificate 1
Utility Model Patent Certificate 2
Utility Model Patent Certificate 3
Utility Model Patent Certificate No. 4
Invention Patent Certificate
Design Patent Certificate 1
Jiangsu Province's Science and Technology-based SMEs
High-Tech Enterprise Certificate
Jiangyin City Vacuum Application Engineering Technology Research Center
Jiangsu Province Private Science and Technology Enterprises
Utility Model Patent Certificate 5
Utility Model Patent Certificate No. 6
Utility Model Patent Certificate No. 7
Utility Model Patent Certificate No. 8
Utility Model Patent Certificate No. 9
Utility Model Patent Certificate 10