退货单 meaning in Chinese

mrb material reject bill
rejection note
returned sales report
returning note

Vendor come to take by nonconformity material ? stock according < < return material record > > ? check material again and take it to vendor ? then send < < return material record > > of vendor signed to pr department & pmc
4供应商按规定时间来厂取回物料时?货舱根据< <退货单> > ?将所退物料再次清点后交于供应商代表?并将供应商代表签收过的< <退货单> >分发给采购部和pmc