Our company's produced patches are quality certified by BSI British Standards Institution - ISO 9001:2015.

Patent: Improved patch structures (Utility Model Patent No. 216313)
Patch curing devices (Utility Model Patent No. M250803)

Strength testing:Our patches have passed high-pressure burst tests conducted by commissioned High-Speed Rail Technology Co., Ltd.

Category of our patches:Nylon,Steel,OTR and customized patches