我厂建于一九五八年(当时以修造为主)。现在铸造车间有45名工人(男27,女18),平均年龄33岁。在卫生防疫部门指导下,我们从一九七八年起对铸造车间的粉尘浓度进行过测定及健康普查。粉尘最低5毫克/立方米,最高10毫克/立方米。1983年发现一例Ⅰ期矽肺患者,疑似患者两例;1984年发现两例疑似患者;1986年发现一例疑似患者。(这些病例均按国家法定尘肺X线诊断标准确 I plant was built in 1958 (at that time to build mainly). There are now 45 workers in the foundry (male 27, female 18), with an average age of 33. Under the guidance of the health and epidemic prevention department, we have conducted a measurement and a health survey of the dust concentration in the foundry since 1978. Dust minimum 5 mg / m3, up to 10 mg / m3. In 1983, one patient with stage I silicosis and two suspected cases were found; two suspected patients were found in 1984; and one suspected patient was found in 1986. (These cases are according to the national statutory pneumoconiosis diagnostic criteria indeed