我厂原有职工 167人,分铸铁、车工、硬模铸铜、制管等四个工段,以生产水暖器材为主,大部分是铜制产品。自从1958年初,中央提出大量节约铜料的指示后,厂内即把以铜料为主的产品,改用铸铁代替。虽然这两种原料都是铸造金属,但在铸造过程中却遇到了很多问题,如:浇铸、技术操作。产 Our factory employs 167 people and is divided into four sections including cast iron, lathe, hard die-casting copper, and tube production. We mainly produce plumbing equipment, most of which are copper products. Since the beginning of 1958, when the central government put forward a large number of instructions for saving copper materials, the company changed the use of copper-based products instead of cast iron. Although both of these materials are cast metals, many problems have been encountered in the casting process, such as casting and technical operations. Production