defective products短语⁶³⁰⁶⁵ 基本例句 不良品 Our company specializes in the production of enterprises under the angle expected, defective products such as green waste material treatment and processing of waste plastics recycling. 我公司专业从事各生产企业的下角料、残次品等废旧物资的绿色环保处理及加工废塑料再生。 kekenet