Answer Posted / atish kumar mohanty

1) ERW pipe:- Electrical Resistance welding it means tube
sheet is rolled and then end of tube sheet(seem) is
welded.

2)shedule pipe:-it is aindicative of pipe thickness.

3) Seamless:-It is solid pipe without seam welding. it
extruded.

4) IBR pipe :- Meterial composition and pipe test are as
per IBR regulation approval,must have the IBR approved
cirtificate

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