certificate

Recently, the 40-ton and 50-ton mining heavy-duty flatbed cart products of three models, MPC40-6, MPC40-9, and MPC50-6, independently researched and developed by China Coal Group Intelligent Manufactu

Recently, China Coal Group received a good news. Eight models of dump trucks and one model of flat trucks produced by China Coal Group Intelligent Manufacturing Company successfully obtained a total o

Recently, Shandong China Coal Group reported that the six types of temporary support single hydraulic prop products produced by China Coal Group Intelligent Machinery Factory have obtained the nationa

Recently, the AOPA Association of the Civil Aviation Administration of China has strictly examined and approved the official certificate of the civil drone pilot vocational education and training cent