Tender For tender for supply of pipe fittings : : -flange blind details specification shall be as per attached nit , flange blind details specification shall be as per attached nit , flange details specification shall be as per attached nit , flange details specification shall be as per attached nit , flange details specification shall be as per attached nit , nipple details specification shall be as per attached nit , nipple details specification shall be as per attached nit , weldolet details specification shall be as per attached nit , weldolet details specification shall be as per attached nit , weldolet details specification shall be as per attached nit , weldolet details specification shall be as per attached nit