Conventional models of white corundum micro powder
Conventional models of white corundum micro powder The conventional models of white corundum micro powder are divided into two standards:1. JISstandard, 2. F standard White corundum powder JISstandard # 240 # 280 # 320 # 360 # 400 # 500 # 600 # 700 # 800 # 1000 # 1200 # 1500 # 2000 #