购销合同:煤矿机电产品购销合同范本合同编号:____________需方编号:_________________签订地点:________________________签订日期:_____年_____月_____日设备名称________________________计量单位________________________数量________________________要求交货期________________________合同价格单价:________________________合同交货期总价:________________________主辅机型号规格:________________________需方__...