hi I am filipino working here in china for 6years i have L visa for 10days now.My

employer has factory here and it requires me to come and go back to Philippines due to my nature of work.Previously they granted me Z visa but since i got my renewed passport since 2009 i had a hard time applying for it. Now i need to re-apply again what should i do to grant me again my request.I had all the necessary documents needed please help me.Thanks