HSN code HSN description GST 9031 Measuring Or Checking Instruments, Appliances And Machines, Not Specified Or Included Elsewhere In This Chapter; Profile Projectors 18% 90311000 Measuring Or Checking Instruments, Appliances And Machines, Not Specified Or Included Elsewhere In This Chapter; Profile Projectors Machines For Balancing Mechanical Parts 18% 90312000 Measuring Or Checking Instruments, Appliances And…