Need HSN Code for MSand & PSand & WMM & 3/4 Jally & 1/4 Jally i am using HSN for Sand [ 2505 ] and for Jally & WMM [ 2517 ] is it correct or Need to change HSN Some using Psand 2505 , MSand 2618, WMM 2517, 1/4 Jally 6802, 3/4 Jally - 6802, Dust 7105 which HSN Code i can use