supply of super heater boiler tubes , alloy sml pipe as per sa-335, grade p-11 200mm (8 f nb) sch-80 msl/ismt/jsl make with material test certificate , sml c.s. pipe as per astm a-106, gr-b, hsn code 7304 200mm (8 f nb) sch-80 msl/ismt/jsl make with material test certificate , ibr high pressure alloy steel cds boiler tube as per sa-213, grede t-22 hfs, 50.80 mm od 4.06 mm thick x6.10 mtr long msl/ismt/bhel/jindal make with material test& ibr certificate , alloy steel cds boiler tube as per sa-213, grade t-11, 44.50 mm odx 4.06 mm thickmsl/ismt/jsl make with material test certificate , alloy sml pipe as per sa-213, grade t-11, 50.80 mm od4.06 mmthick msl/ismt/jsl make with material test certificate , ibr tested high pressure alloy steel cds boiler tube as per sa-213, grede t-22, hfs size 50.80 mm od x 4.06 mm thickness x 6.10 mtr long msl/ismt/bhel make with material test & ibr certificate , boiler tube as per astm210/asme, sa-210 grade a-1, size 38.10 mm od x 4.06 mm thick x 6.10 mtr long for economiser msl/ismt/bhel/jindal make with material test & ibr certificate (384+13=397 tubes) , ibr seamless reducer for prv modification size6 x 10 , ibr seamless reducer size8 x 6 , note: ordered material will be supplied within 20 days