Product name: 530mm MRING Overburden Casing Drilling System Hole Opener Bits For Stone Drilling Product category: Overburden casing drilling tools Kingdrilling diamond CO., LTD is one of the most professional ... Διαβάστε περισσότερα
Product name: 219mm casing pipe MK3E overburden middle reamer casing drilling bit for warter well drilling Casing pipe OD: 219MM When simultaneously drilling and casing through loose overburden materials, our ... Διαβάστε περισσότερα
Eccentric Casing Drilling Bit MK5E139/110 Overburden Casing System 1. Application range It is suitable for drilling water wells, geothermal wells, short micropiles, medium mini-type grounting hole of building, ... Διαβάστε περισσότερα