Trade barriers are measures that governments or public authorities introduce to make imported goods or services less competitive than locally produced goods and services. Not everything that prevents or restricts trade can be characterised as a trade barrier.
A government imposed restriction on the free international exchange of goods or services.Trade barriers are generally classified asimport policies reflected in tariffs and other import charges, quotas, import licensing, customs practices,standards, testing, labeling, and various types of certification1.direct procurement by government,2.subsidies for local exporters,3.lack of copyright protection,4.restrictions on franchising, licensing, technology transfer,5 restrictions on foreign direct investment, etc.
I need some more points
Barrier on trade with other countries.

Trade barriers are government-induced restrictions on international trade.The barriers can take many forms, including the following:TariffsNon-tariff barriers to tradeImport licensesExport licensesImport quotasSubsidiesVoluntary Export RestraintsLocal content requirementsEmbargoCurrency devaluationTrade restriction

My pleasure ☺️
Thank you?
Trade barrier are the taxes which government apply on the import of goods form other countries to our country to reduce their products coming in our country.

Trade barriers are government-induced restrictions on international trade. The barriers can take many forms, including the following: Tariffs Non-tariff barriers