求翻译：请安排280582款的一些物料的BOOKING， 订单数量为3500件(不含损耗), SM 大约8/20左右出, 因此款是在越南生产, 因此SM 一出, 物料需要即刻安排运往工厂, 谢谢.是什么意思？

BOOKING arrangements 280,582 of some materials, the order number to 3,500 (without loss), SM about eight-twentieths, so the paragraph is in Viet Nam, SM came out, the material need immediate arrangements delivered to factories, thank you.