开封市大力发展外向型经济杨玉虎改革开放十余年来，开封市的乡镇企业坚持立足当地资源，充分发挥农业资源和畜牧养殖业资源，以及桐木资源三大优势，大力开展深层加工，实现综合利用，多种增值。他们在面向国内市场的同时，积极开拓国际市场，全市依靠当地资源发展起来的... Kaifeng vigorously develop the export-oriented economy Yang Yuhu Reform and opening up more than 10 years, Kaifeng City, township enterprises adhere to the local resources, give full play to agricultural resources and animal husbandry and aquaculture resources, and Paulownia resources three major advantages, vigorously carry out deep processing, to achieve comprehensive utilization , A variety of value-added. While they face the domestic market, they actively explore the international market and the city relies on local resources to develop it.