In this video I have covered a confusing topic that is flame proof apparatus and intrinsically safe APPARATUS...hope u will like it and don't forget to subscribe channel 🙏❤️🤝
#mining #coalindia #miningsirdar #coal #overman #undergroundmining
Негізгі бет FLAME 🔥PROOF APPARATUS||| INTRINSICALLY SAFE APPARATUS||| DIFFERENCE IN USE IN U/G MINES
No video
Пікірлер: 4