QC Group "Tuanjie", the Center of Study and Development, the Branch of Repair and Maintenance, China Petroleum Pipeline Bureau.
中国石油管道局维抢修分公司研发中心团结QC小组。
A new method of pipeline repair and maintenance is introduced.
介绍一种管道维修新工艺。
A new method of pipeline repair and maintenance is introduced.
介绍一种管道维修新工艺。
应用推荐