procurement of spares of ingersoll rand make air compressor model 12 7x7 phe 7 ba1 and ba2 installed in mill reject handling system of stps-iv sarni . , procurement of spares of ingersoll rand make air compressor model 12 & 7x7 phe-7 ba1/ba2 , installed in mill reject handling system of stps-iv , sarni . , assembly piston 12 part no: 70263538 ( hsn code : 8414 . 9090 ) , assembly rod piston 12part no:70263512 ( hsn code : 8414 . 9090 ) , assembly rod piston 7 part no:70223219 ( hsn code : 8414 . 9090 ) , holder guide part no:3703935 ( hsn code : 8414 . 9090 ) , guide valve part no:37039179 ( hsn code : 8414 . 9090 ) , holder guide part no:37025517 ( hsn code : 8414 . 9090 ) , screw machine part no 37025988 ( hsn code : 7318 . 1110 ) , screw m/c part no 95111142 ( hsn code : 7318 . 1110 ) , screw machine part no:95110581 ( hsn code : 7318 . 1110 ) , screw cap part no: 95104147 ( hsn code : 7318 . 1600 ) , cap screw part no:95434734 ( hsn code : 8414 . 9019 ) , cap screw frm hd part no:30556963 ( hsn code : 7318 . 1110 ) , discharge valve complete hp part no:70265277 ( hsn code : 84149090 ) , inlet valve complete hp part no:70328760 ( hsn code : 84149090 ) , discharge valve lp complete part no:70268693 ( hsn code : 84149090 ) , discharge valve complete lp part no:70268677 ( hsn code : 84149090 )