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                      | Pneumatics, hydraulics,
 electronic drives
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                      | NOV products (including Mission and Hydra Rig).
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                      | SPM flow control products, well service pump and parts.
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                |  | Since its founding 80 years ago, Twin Disc has been  focusing on designing, manufacturing and distributing power transmission  equipment. Twin DiscĄŻs products are used in a variety of power systems to  monitor the engine power output, and the products application covers many  industries from ship industry to metallurgy industry, and from oil machinery to  mining machinery. |  |  
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                | Shanghai O&M provides the following Twin  Disc products: mechanical and hydraulic PTO, electric components, gearbox  assemblies and components, and etc. |  |  
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