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Index--> World Mahjong --> grade-->Details

grade Info  
     Application Form of Mahjong Pin Level 2009-9-30
     The Procedure for Apply Mahjong Pin Level 2009-9-29
     The Certificate of Pin Level by the World Mahjong Organization 2009-9-28
     Mahjong Pin-Ranking System 2009-7-3
 
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