A dam gate is opened by mechanical hoisting arrangements.
Manual lifting is also provided in addition, for emergency in case of mechanical failure, electricity failure, jamming of rolling parts etc.
A dam gate is opened by mechanical hoisting arrangements.
Manual lifting is also provided in addition, for emergency in case of mechanical failure, electricity failure, jamming of rolling parts etc.
Welcome back to the Wednesday edition of Real Talk With Ronnie. Tonight, we welcome Dr. Dennis Peng onto our program. Dr. Peng was..