tender for fabrication and supply of 500 nb / 450 nb ss316gr pipes and fittings for unit-iv ash water tank incoming and interconnection line for stage-iii ash water pump house , fabrication and supply of 500 nb / 450 nb ss316gr pipes and fittings for unit-iv ash water tank incoming and interconnection line for stage-iii ash water pump house 500 nb ss 316 gr spool piece length of 2120mm with 2 flanges, pipe od : 525.4mm, thick-12.7, flange thick : 25mm other dimensions are enclosed in drawing , 500 nb ss 316 gr spool piece length of 1200mm with 2 flanges, pipe od : 525.4mm, thick-12.7, flange thick : 25mm other dimensions are enclosed in drawing , 500 nb ss 316 gr spool piece length of 1550mm with 2 flanges, pipe od : 525.4mm, thick-12.7, flange thick : 25mm other dimensions are enclosed in drawing , 450 nb ss 316 gr spool piece length of 720mm with 2 flanges, pipe od : 475.4mm, thick-12.7, flange thick : 25mm other dimensions are enclosed in drawing , 500 nb ss 316 gr spool piece length of 3000mm with 2 flanges, pipe od : 525.4mm, thick-12.7, flange thick : 25mm other dimensions are enclosed in drawing , 500 nb x 450 nb ss 316 gr 900 bend reducer length of 1550 mm with 2 flanges, pipe od : 525.4mm, thick-12.7, flange thick : 25mm other dimensions are enclosed in drawing , 450 nb ss 316 gr 900 bend mean length of 1000 mm with 2 flanges, pipe od : 475.4mm, thick-12.7, flange thick : 25mm other dimensions are enclosed in drawing , 450 nb ss 316 gr 900 bend mean length of 1300 mm with 2 flanges, pipe od : 475.4mm, thick-12.7, flange thick : 25mm other dimensions are enclosed in drawing