Xiangtan Zhongwei Heavry Industry Company

Established in 2008, Xiangtan Zhongwei Heavy Industry is an advanced technological company that specializes in the R&D, manufacture and sales of vario

Rock bucket with double bottom double cutting edge Main application: medium hard rock Our main products include kelly bars, drilling buckets, augers,

Core barrel with roller bits Core barrels are used to cut an annular ring in rock or concrete or reinforced concrete. The centre core of the rock or c

Core barrel with roller bits Core barrels are used to cut an annular ring in rock or concrete or reinforced concrete. The centre core of the rock or c