1, qulity requirement: retention / pachase / registration rate of 25% 2, payment terms:等比付款,等级付款,不达标不付3, payment rules: If the Day 2 retention rate is 20% less charcoal, We will not pay it. If the Day 2 retention rate is 20% -25% giữa, We will pay 60%. If the Day 2 retention rate is above 25%, We will pay 100%.
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