Buyer shall issue the purchase order sheet by 60 days before the delivery time.

买方应在发出采购订单表，由前60天交货时间。

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Issue the purchase order and release to supplier and chase the delivery performance;

下采购订单，发送给供应商并且追踪发货情况；

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Issue the purchase order and release to supplier and chase the delivery performance;

下采购订单，发送给供应商并且追踪发货情况；

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