Purchase Qty. Reference FOB Price
1-4 Pieces US$730.00
5+ Pieces US$650.00
Product Description
Overburden Concentric Casing Drilling System with Reamer Bit for Drilling Rig Product Description MRE Concentric under reaming drilling system is designed for unstable ground conditions. In the process of drilling, it could carry down the casing pipe to the hole to protect wall to achieve ...