The drill rod box is used as the holding system of the drill rod, and it cooperates with the manipulator to realize the complete combination of drilling and unloading, which provides a guarantee for the continuous work of the drilling rig. Through the analysis of on-site production...
二、郑安德投资情况:郑安德目前是上海泽野商贸有限公司直接控股股东,持股比例为60%;目前郑安德投资上海泽野商贸有限公司最终收益股份为60%;三、郑安德的商业合作伙伴:基于公开数据展示,郑安德目前有4个商业合作伙伴,包括顾振坤、SONICHOLDINGLTD、NOBLEFIELDLIMITED等。