... 100%wool diameter:4-5-6-7-8-9inch certification:ISO9001:2008;BV sizeDiameter: 7 inch, or according to customers ... to make the goods like new after polishing;To use with polishing liquid, polishing paste, polishing power at the same ... mechanism,electronechanical,spaceflight, aviation,shipping,training,auto,metallurgy,chemical industry,cement,machine tool,printing, weave, etc. It is used ...