我们在1956年《机床与工具》第12期王振青同志写的“去锈及防锈的商榷”一文中看到有“铸铁制成的产品如月亚硝酸钠液洗涤甚易生锈”一语我们很想知道其原因。同时是否还有其他方便方法能防止铸铁生锈。因为我厂生产的产品大多是铸铁的,由于严冬气候的影响,成品库与车间温度悬 We have in 1956, “Machine Tool and Tools” 12th Comrade Wang Zhenqing “to rust and rust-proof” article to see “cast iron products such as sodium nitrite solution is very rusty,” the phrase we I really want to know the reason. At the same time whether there are other convenient ways to prevent cast iron rust. Because I plant mostly cast iron products, due to the impact of harsh winter climate, the finished product warehouse and workshop temperature