Technical barriers are when importing countries implement trade import controls, by enacting laws, decrees, regulations, regulations, establishing technical standards, certification systems, health inspection and quarantine systems, inspection procedures and packaging, specification labels and standards, etc. Non-tariff barriers for the purpose of increasing the difficulty of imports, and ultimately reaching the goal of restricting imports, protecting national security, protecting the interests of consumers, and maintaining the balance of payments. Which of the following are technical barriers:. ['The government of country B believes that the price of textiles in country A is too low, which has caused substantial damage to its textile industry, so an anti-dumping investigation is carried out on the textiles of country A. and the export of textiles of country A is restricted.', 'The leather shoes produced in a certain country are banned from importing by the EU because the glue used is found to be seriously unqualified, and the glue used contains a lot of toxic substances.', 'On May 29, 2006, Japan formally implemented the "positive list system", increasing the number of imported tea residue testing items from 71 to 276.', "The law of a country prohibits the purchase of foreign goods during government procurement to support the development of the country's industry."]