中小钎头广泛地应用于冶金、地质、煤炭、水利、铁路、军工等建设事业。据统计,1978年全国消耗中小钎头约1千万只,因此,它在国民经济建设中起着重要的作用。 我所于1978年开始研制真空钎焊中小钎头,1980年通过了冶金部作的技术鉴定,同年开始生产,现具有年产十万只规模的中小钎 Small and medium sized drill is widely used in metallurgy, geology, coal, water conservancy, railways, military and other construction. According to statistics, about 10 million small and medium-sized drill heads were consumed throughout the country in 1978, therefore, it plays an important role in the national economic construction. I started in 1978, the development of small and medium vacuum brazing solder head, metallurgical department in 1980 passed the technical appraisal, the same year began production, now has an annual output of 100,000 small scale brazing