... 2.ISO9001:2000 certificate approved 3.OEM accept High-precision bearing: 1More than 20 years of manufacturing and ... class with high-precision, low noise excellent character, long-life, etc5 Application areas:mine machine, port hoisting machine, port ... onshore and offshore crane; excavator, concrete machine, paper machine, plastic and rubber machine, weave machine, steel plant, electronic power plant, ...