شکستن سنگ Splitting hard rock with plugs and feathers

Breaking rock the old fashioned way, these little plugs and feathers managed to break some really hard Rhyodacite rock. An addition to my toolbox that comes in handy for small rocks when blasting is not practical. آموزش شکستن سنگ آموزش شکستن بتن

• #فناوری_و_رایانه
• #rock_breaking
• #rock_splitting
• #شکستن_سنگ