
Hengma Business License

High and new technology enterprises

Hengma Honorary Certificate

Hengma Tax Registration Certificate

Hengma Organization Code Certificate

Trademark Registration Certificate

Hengma Certification Certificate -16815SZ0286R0M (Chinese)

Hengma Material Analysis and Testing Certificate

Applicable New Patent Certificate for Repeated Inflatable Cable Conduit Sealing System

Patent certificate for invention of a fast inflation sealing device

Hengma Utility Model Patent Certificate

Inspection Report on Inflatable Channel Sealing Device