石化咨询公司万邦蒸：非关税壁垒是指除关税以外，一国为使本国某些产业或产品免遭进口产品的冲击所采取的一系列限制进口的措施。据WTO的前身GATF粗略统计，各成员国使用的各种显性或隐性的非关税保护措施达1000多种，其中，普遍使用的主要有12种。1．进口配额。这是由政府规 Petrochemical consulting firm Wanbang Steam: Non-tariff barriers refer to a series of import restrictions that a country adopts to exempt certain industries or products in the country from the impact of imported products except tariffs. According to the GATF rough statistics of the WTO, all kinds of explicit or implicit non-tariff protection measures used by member countries reached over 1,000 kinds, of which 12 were mainly used universally. 1. Import quotas. This is regulated by the government