陕西省某县粮油加工厂副厂长冯某及其业务员张某 ,于 1998年 12月 17日在广东阳江市化工厂推销亚麻油期间 ,经化工厂供销科副科长许某的介绍 ,认识了阳江市太傅商场经理黄某 ,并与其签订了一份购销 2 5 0吨亚麻油合同。粮油加工厂于 1998年12月 2 8日到 1999年 1月 31日 ,陆续 Zhang County, deputy director of a county grain and oil processing plant in Shaanxi Province and its salesman Zhang, December 17, 1998 in Yangjiang City, Guangdong Chemical Plant sales of linseed oil during the supply and marketing by the chemical plant Xu, deputy chief Xu introduced, Yangjiang City, taifu mall manager Hwang, and signed with a purchase and sale of 255 tons of flax oil contract. Grain and oil processing plants in the December 28, 1998 to January 31, 1999, one after another