一种以国产20号无缝钢管代替进口Q8铝钢材制作的经济耐用的托辊轴承盒,最近,在鞍钢弓长岭选矿工业公司问世。托辊轴承盒,是皮带运输机托辊的一个部件。过去,这个部件是生产厂家以每吨3800美元从国外进口Q8铝钢材生产的,弓长岭选矿厂以6.5元一个的价格买来半成品加工使用,价格昂贵。就是这样还经常买不到货。1988年8月,弓长岭选矿工业公司加工车间,进行用国产钢材代替进口钢材生产轴承盒的研制工 An economical and durable roller bearing box made of domestic seamless steel pipe No. 20 instead of imported Q8 aluminum steel was recently introduced at Gongchangling Dressing Industry Company in Anshan Iron and Steel. Roller bearing box, is a belt conveyor idler component. In the past, this component was manufactured by a manufacturer that imported Q8 aluminum from abroad at $ 3,800 a metric ton. The Gongchangling concentrator was bought for semi-finished products at a price of $ 6.5 and was expensive. This is how often you can not buy goods. In August 1988, Gongchangling beneficiation industry processing company workshop, with domestic steel instead of imported steel production bearing box of the development