m303Oilsky M303 MP3 Player. Possible Problems And Troubleshooting Of Oilsky M303 Mp3 Player. We promise that any problems will be properly solved in Oilsky. Email: [email protected]BÖHLER M303 EXTRA is a corrosion resistant martensitic chromium steel, offering excellent toughness, corrosion and wear resistance. It is characterized by improved machinability