What is ME53N?

What is the full form of EPDM in rubber indudtry? If you double the speed of centrifugal pump? What is the cost of a pneumatic elevator? What is strongest swedish steel or Japanese tamahagane steel? What criteria are usually used to evaluate a mechanical device? What is the meaning of WC6 in valves? How is steel obtained? What is the hardness level for en19 material? What Simple machines that start with the letter o? What is the equivalent of BS 1873 in API standard? What is a mechanical shaker used for? Is the flow of power reversible for bevel gears? What is pulley mechanisms? How many Kw is 65000 BTU PER HR? What could you have done better and how? All Thikness IS 2062 ms chequered plate weight with chart? What does CS or HS mean in thread cutting tools? When you need a signed ASME U1A Form? Do elevators use pulleys? What is a box column?