单位：元/公斤山东爪类规格最低价最高价中间价涨跌小凤爪33.8035.5034.650.40大凤爪37.7039.6038.650.1530-40小爪28.6028.9028.750.1540-50中爪29.4030.0029.700.3050-60大爪30.6031.4031.000.25胸类单冻大胸8.809.509.150.00毛胸8.308.608.