Manganese Oxide (MnO) Welding Grade – (63% + Mn) is used as raw material in manufacturing of SAW flux. Manganese Oxide (MnO) Welding Grade – (63% + Mn) grade is used in the manufacturing of SAW flux. The product is available in: 25 kg, 50 kg Nett bags, 1000 Kg Jumbo bags or 1250 kg Jumbo bags on pallets 24/25 MT per 20′ Box container. Manmohan’s production capacity is 2,000 Metric Tons per month.