中国物流与采购联合会采购委于2012年4月15日~5月15日在全国范围内展开采购调查,其中机械设备行业共收回有效问卷59份。参与调查的机械设备制造企业以外商投资或中外合资的为主,占81.36%;私营企业占13.56%;其他类型的企业占5.08%。从企业的规模来看,2011年销售收入平均超过了800亿元,因此样本主要反映了大型、中型企业的情况。 Procurement Committee of China Federation of Logistics and Purchasing from April 15, 2012 ~ May 15 in a nationwide procurement survey, of which the mechanical equipment industry received a total of 59 valid questionnaires. The machinery and equipment manufacturing enterprises participating in the survey were mainly foreign-funded or joint-venture, accounting for 81.36%; private enterprises accounting for 13.56%; other types of enterprises accounting for 5.08%. From the perspective of the size of enterprises, sales revenue in 2011 surpassed 80 billion yuan on average. Therefore, the sample mainly reflects the situation of large and medium-sized enterprises.