视频：竖井施工三维动画

&#xe600

SHANDONG CHINA COAL  INDUSTRY& MINING GROUP

CHINA MINING&CONSTRUCTION EQUIPMENT BRANCH

SHANDONG CHINA COAL  IMPORT & EXPORT CO., LTD.

SHANDONG CHINA COAL GROUP  DRILLING MACHINE

SHANDONG CHINA COAL MINING  SINGLE HYDRAULIC PROPS CO., LTD.

SHANDONG CHINA COAL MINE  CAR CO., LTD.

SHANDONG CHINA COAL  U STEEL SUPPORT CO., LTD.

SHANDONG CHINA COAL  MINING WINCH CO., LTD

SHANDONG CHINA COAL  LOCOMOTIVE CO., LTD.

CHINA COAL MANUFACTURING GROUP CO,. LTD.