建筑钢材买卖协议书甲方(买方)：__________________地址：________电话：__________乙方(卖方)：__________________地址：________电话：__________经双方协定一致，签订水泥购销合同条款如下：一、材料价额品名________________规格________________数量________________计量单位________________单价________________金额(元)______________