... , Metal, Wood, Marble, Stone,etc Sand Paper Aluminium Oxide AbrasivesJZsander is short for Chongqing ... a good market potentiality.We also supply sand papers, sand paper grits range is rather wide, ... 1000#Kindly Reminder:As for the drywall sanding, sand paper grits chosen below is for your reference16# ... 40# , 40# , 80#, 120# these grits are used to sand outer walls, 180# , 240#, 320#, 400#, 600#, 800# ...