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34.5035.5035.000.40大凤爪37.8039.5038.650.3030-40小爪28.0028.8028.400.6040-50中爪28.6029.0028.800.2050-60大爪29.4030.6030.000.25胸类单冻大胸9.409.909.650.05毛胸8.709.008.