What is H2S gas(Toxic Gas)? Explanation in Hindi by Online Mentor

แชร์
ฝัง
  • เผยแพร่เมื่อ 22 ธ.ค. 2024

ความคิดเห็น • 1

  • @ganeshtiwari2550
    @ganeshtiwari2550 4 ปีที่แล้ว

    valuable knwledge u r giving sir..
    Add more topic n make little longer videos sir from which u can add more topics in that like ...
    working at height scaffold in detail ladder electric part permit in detail ...from dat anyone can gain more more ....
    manual handling n machinery crane conveyor n lifting equipments confined space in detail...
    hope see in future videos