additional documents for Z-visa

dear Madam,
I have invitation letter from china gov. and local china one company. My visit is for business purpose and i am company employe. So what is the others necessary documents needed with the visa application form in china embassy?
Waiting for your reply now, please.

Shikha, are you a Romanian passport holder applying for China work visa in Bangladesh? If so, you also need to submit your Bangladesh resident permit. If you don't have it, you need to go back to your home country to apply for the Z visa.

Mozammel, you need to apply for a business visa if you are going to China for business purpose and the requirements include:
1. your passport and one recent passport photo;
2. visa application forms V2011A;
3. "Invitation Letter of Duly Authorized Unit" or "Confirmation Letter of Invitation"
4. other deemed necessary documents by the consular office.