about visa application

Maybe! The Chinese authorities have the right to ask all visitors for this but often don't. They are more likely to ask it of you as you come from a poor nation because the statistics show that people from your country are more likely to overstay their visa to work

Check with a visa issuing office in your country, you will probably have to visit as they rarely answer the phone or reply to emails. If there are specialist visa agents in your country, often found near the visa offices, they can often organise a visa easier than you can, but it will cost.