News A Batch of Waterproof Airtight Doors of China Coal Group Sent to Hebei On the afternoon of March 12th, a batch of mine waterproof equipment-waterproof airtight doors were formally loaded after acceptance, and would be sent to Kuancheng of Hebei.... Tags: Waterproof Airtight Doors China Coal Group Sent VIEW DETAILS Menu Enterprise News Trade News Technical Data Foreign Customers Domestic Customers Hot News China Coal Group Participation 2024 Qingda... China Coal Group Signs International Order... China Coal Group Attends 2024 Qingdao Inte... China Coal Group Participates In 2024 Qing... China Coal Group Participates In The 2024 ... China Coal Group And Yantai Ruicai Enginee... China Coal Group Signs Orders At The 135th... China Coal Group Signed Purchase Orders Wi...