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Diamond-wired sawn low-grade 6N silicon and standard Siemens process produced Multi-Silicon PV wafers.Crystalline Silicon is 90% of the world market, 30% is MONOcrystallin and 60% are Multicrystallin.UMG is part of Multicrystallin.To lower costs in general, the MONO-PV wafers are cut today with Diamond-wire, what I already pretended at Shenzhen PV confecence in 2003.