Warm Congratulation to China Coal Group On Obtaining Utility Model Patent of Car Arrester
Car Arrester obtained the Certificate of Utility Model Patent(Cert. no:5838555, Patent no: ZL 201620879706)
Fixed Type Stop Buffer Obtained National Utility Model Patent
Fixed Type Stop Buffer obtained the Certificate of Utility Model Patent according to the Patent Law of the People''s Republic of China
Warmly Congratulate China Coal Group On Obtaining National Utility Model Patent of A Mine Product
Underground mine activity bracket mine car which is independently researched and developed by China Coal Group passed the audit of the State Intellectual Property Office and obtained the Certificate o
Sliding Buffer Stop of China Coal Group Won Certificate of Utility Model Patent
sliding buffer stop( product details please refer to https://www.railroadmachinery.com/productinfo1521), which developed independently by China Coal Group passed the audit of the State Intellectual Pr
China Coal Group Obtained Product Utility Model Patent of No Pressure Air Door
No Pressure Air Door of China Coal Group passed the audit of the State Intellectual Property Office and obtained the Certificate of Utility Model Patent
Mining No Pressure Air Door of China Coal Group Obtained Certificate of Utility Model Patent
Mining No Pressure Air Door, which developed independently by China Coal Group passed the audit of the State Intellectual Property Office and obtained the Certificate of Utility Model Patent