一、经商必备:①《全国主要专业批发市场320家介绍》,该资料全面详细介绍了全国主要大型专业批发市场共60个大类320多家所在位置、地址、营业面积、经营品种、规模、日人流量、日成交额等重要商业情报,并包括《全国最大的50个工业品批发市场及全国最大的50个农副产品批发市场对比资料》及《全国主要产品竞 First, the business must: ① “National 320 major professional wholesale market introduction,” the information details a comprehensive large-scale professional wholesale market a total of 60 categories of 320 more than the location, address, business area, operating species, size , Japanese traffic, daily turnover and other important business intelligence, and include “the country’s largest wholesale of 50 industrial products and the nation’s largest wholesale market comparison of 50 agricultural products” and "the main product of the country competitive