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* [https://en.eijkelkamp.com/ Eijkelkamp Agrisearch Equipment], 荷兰 - 钻井设备以及手钻和冲击圆凿的指南.
===Field experiences实地经验===The vonder rig is widely used in Malawi, Kenya, South Africa and Zimbabwe.三脚架钻井机在马拉维、肯尼亚、南非和津巴布韦广泛使用。
===Manuals, videos and links===