Learn how to make a mini drill machine using simple materials like cardboard in this easy-to-follow DIY tutorial. Discover ...

Discover the art of crafting your very own homemade tool for drilling holes in this insightful video. Whether you're a DIY enthusiast or just love hands-on projects, this guide offers step-by-step ...

China's first domestically developed subsea Christmas tree for oil drilling was recently installed and officially put into operation in the South China Sea, breaking the long-term monopoly of foreign ...