Purchase Qty. Reference FOB Price
1-199 Pieces US$71.00
200+ Pieces US$70.50
Product Description
Aplication / Drilling formation: soft rock/ loose-medium rock, hard rock or any other special formations 1) It suitable for all kinds of rock-Soft rock, loose-medium rock, hard rock and any other special formations. 2) It is divided into planar and concave heart-shaped, easy return type, easy to ...