... from 16#-1000# 4.For Wall, Metal, Wood, Marble, Stone,etc Sand Paper Aluminium Oxide Abrasives ... a good market potentiality. We also supply sand papers, sand paper grits range is rather wide, from ... # Kindly Reminder: As for the drywall sanding, sand paper grits chosen below is for your reference 16 ... , 40# , 40# , 80#, 120# these grits are used to sand outer walls, 180# , 240#, 320#, 400#, 600#, 800# , ...