朝鲜战争爆发时,苏联、蒙古及东欧社会主义国家援朝军用物资均从满洲里输送至朝鲜,特定的历史时期使满洲里口岸货运量占据全国第一位。此时口岸通关监管工作保密性较强,国家对满洲里口岸进口货物的收货人进行了严格的分类和严密的编号,其中收货人编号为0123(已解密)的进口货物 At the outbreak of the Korean War, the Soviet Union, Mongolia and the socialist countries in Eastern Europe sent materials for aid to the DPRK from Manchuria to North Korea. In a specific historical period, the cargo volume at the port of Manzhouli occupied the first place in the country. In this case, port clearance work is more confidential. The state has conducted a strict classification and strict numbering on the consignee of the imported goods at Manzhouli Port. The consignee has imported the goods with the number of 0123 (decrypted)