I want to get 6 month travel visa

I'm afraid you cannot apply for the single entry L type with a stay duration of six months. Perhaps you can apply for the six-month double-entry L type, but it's likely that each stay duration will be 30 days or 60 days. The process is simple. Just provide your passport, passport copy, application form attached with passport style photo, round-trip tickets and hotel reservations. Then submit the application to the consular office.