MAKING IT：設計師一定要懂的產品製造知識 (二手書交易資訊)

[{"sale_price":260,"disc":"38","prod_count":1,"sale_month":"202009","avg_price":260,"avg_disc":38},{"sale_price":350,"disc":"51","prod_count":1,"sale_month":"202011","avg_price":350,"avg_disc":51},{"sale_price":330,"disc":"49","prod_count":1,"sale_month":"202012","avg_price":330,"avg_disc":49},{"sale_price":275,"disc":"40","prod_count":1,"sale_month":"202101","avg_price":275,"avg_disc":40}]