1,Seals Materials:NR,EDPM,SR,IIR silicon.etc 2,Quick supply 3,Stringent quality checks 4,Reasonable-paice d1. ... tons.We mainly manufactures emery roller, industrial grinding wheel two series.Industrial grinding wheel was sold to many famous enterprise, such ... XingFang GrindingTools Co.,LTD." FANGFANG"brand) Polish roller of NF15.2