裝潢工法全能百科王：選對材料、正確工序、監工細節全圖解，一次搞懂工程問題 (二手書交易資訊)

[{"sale_price":210,"disc":"38","prod_count":1,"sale_month":"202010","avg_price":210,"avg_disc":38},{"sale_price":660,"disc":120,"prod_count":2,"sale_month":"202011","avg_price":330,"avg_disc":60},{"sale_price":390,"disc":"71","prod_count":1,"sale_month":"202012","avg_price":390,"avg_disc":71},{"sale_price":300,"disc":"55","prod_count":1,"sale_month":"202101","avg_price":300,"avg_disc":55}]