1, minerals: iron ore, nickel, chrome ore and a variety of non-ferrous raw minerals from Southeast Asia, Australia and other places, and is heavily dependent on, no pricing power.
2, timber: state support year by year. Mainly from Africa, North and South America.
3, precision instruments: China's overall technical level is not up to standard. For example, the construction of urbanization requires a large number of seamless tubes for the transport of liquefied petroleum gas and chemicals, our country in addition to one or two leading enterprises simply can not do it.
4, food: China's food is heavily dependent on imports, the proportion of I dare not talk nonsense, but very high, also belongs to the constraints of political means.
Expanded:
Importation Procedures:
(1) The consignee of imported goods or its agent shall declare the transit transportation to the Customs in the place of importation within 14 days from the date of the declaration of the entry of the means of transportation.
(2) declaration of goods for transit transport, the consignee or agent of imported goods shall fill in the Chinese People's *** and the State Customs Declaration of Goods Imported for Transit Transportation (hereinafter referred to as the "Declaration"), and submitted to the data entry center into the Customs automated computer system for customs clearance, printed into a formal declaration of a single form of three copies.
(3) the consignee of imported goods or his agent shall truthfully declare to the Customs, and submit the declaration, the Customs issued by the Customs of the destination of imported transit transport of goods contact list, accompanied by the relevant authorization documents and freight, commercial documents (such as bills of lading or waybills of the goods, invoices, packing lists, etc.).
(4) the consignee or agent of imported goods apply for import license belonging to the transit transport of goods, should be submitted to the Customs of the destination in advance of the import license, after examination and approval by the Customs of the destination issued by the Customs of the import of transit transport of goods contact list, and seal the applicant with the Customs of the territory of the entry.
Baidu Encyclopedia - Import