81
edits
Changes
→Construction, operations and maintenance
|}
===Construction, operations and maintenance修建、运作和维护===
[[Image:Diagram of a vonder rig.jpg|thumb|right|200px|Diagram of a vonder rig. Credit: WEDC.]]
====Suppliers供应商====[[Image:Work table and auger bit.jpg|thumb|right|200px|Work table and auger bit工作台和钻头.]]
* V&W Engineering Ltd, Zimbabwe 津巴布韦 (49 Leyland Road, P.O.Box 131,Harare). - Produces the Vonder rig生产三脚架钻井机.* [http://www.vrm.nl/ Van Reekum Materials], Netherlands 荷兰 - Drilling equipment, hand auger and percussion drilling钻井设备、手钻和冲击钻* [https://en.eijkelkamp.com/ Eijkelkamp Agrisearch Equipment], Netherlands 荷兰 - Drilling equipment and manuals on hand auger and percussion gouges钻井设备以及手钻和冲击圆凿的指南.
===Field experiences===