Since china bought the first boeing b707s in the 1970s the total number of the us maker ' s aircraft serving chinese airlines has reached 534 or two - thirds of china ' s fleet said yang guoqing vice - minister of the general administration of civil aviation of china caac at the signing ceremony 出席签字仪式的中国名航总局副局长说，自从上世纪70年代中国第一次从波音公司购买飞机开始，已经有534家美国的航空制造企业服务于中国的航空业。
