I only need to know exactly what is the meaning of international business culture?

Business culture refers to the common understandings and expectations of the local business community. These things vary in large and small ways in different countries, so international business people need to learn the ways of the country they are hoping to do business with. For example, in some countries it is considered rude to discuss business directly during the first meeting. Offering to go for drinks after a meeting can also be very offensive. Standard practices in government restrictions, legal contracts, paperwork, payment schedules, interest and banking procedures can be very different. The travelling business person should get local advice and avoid the assumption that things work just like at home.