Recently, a good news from China Coal Group, the latest procduct--spiral handle type seal door, which developed independently by China Coal Group passed the audit of the State Intellectual Property Of
February 16th morning, Shandong China Coal Group hosted 2017 National Logistics Symposium in the China Coal Group Industrial Park.
Recently, the product--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
On the morning of February 14th, leaders visited Shandong China Coal Group for inspection.
Recently, the product--sliding stop buffer( product details please refer to https://www.chinacoalintl.com/pd-1447), which developed independently by China Coal Group passed the audit of the State Inte
Recently, the product--sliding stop buffer, which developed independently by China Coal Group passed the audit of the State Intellectual Property Office and obtained the Certificate of Utility Model P