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本文在上期作了消息报导,因该项试验的成功,有助于在阀门生产中推广以铁代钢,解决生产关键,故本期全文刊登,以供参考。
This article made a news report in the last issue. Because of the success of this test, it is helpful to popularize iron-based steel in the production of valves and solve the key production issues. Therefore, this issue is published in full for reference.