Answer / udaya17

seemless tubes are made by stainless steel composites

Answer / murali

made by extrusion of steel billets

Answer / ferozh

they are made by piercing the steel tube and rolling simultaneously, in order to get the hollow tube. they are also produced by cold extrusion techniques.

Answer / souren roy

piercing...

Answer / vijay kumar

Seam less tube are made by piercing and also (extrusion-if long pipe and high pressure required)

why the electric train touches only one conductor n where is the neutral n it will be running 3-phase or 1-phase?

3 Answers  

give me list of material for wiring of 20hp motor?

2 Answers   Alchemist,

There is any especial requirement for motor to drive through with VFD?

0 Answers  

why heat produced at junction of two different conductor. what care should be taken to minimize it.

11 Answers   Birla, Maihar Cement,

what do you mean by lagging and leading current.explain in detail.

1 Answers  

what is the responsibility of C license holder in industry?

0 Answers  

What is the actual meaning between the energy conservation and energy saving ?

3 Answers  

Difference between on line capacitor and Station type capacitor.

1 Answers  

what is vtg limit of earth and neutral at transformer side?

0 Answers   IOCL,

can anyone explain the star-delta motor control wiring ,which wire go where and how they operate?

0 Answers  

how to calculate compresor capacity?

0 Answers  

if we want to convert the two 12 V DC batteries in parallel for UPS ? what would be the result ? which is better for a UPS , connect two batteries in series or connect them in parallel ?

2 Answers