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用冲天炉熔制的铁素体黑心可锻铸铁,可保证获得符合於TOCT 1215-41中规定的最低极可锻铸铁KH 30-6的机械性能的要求。现在,各个生产冲天炉可锻铸铁的农业机器制造厂,均能保证可靠的熔制Kq33-8及更高极的可锻铸铁铸件。
The use of cupola ferrous black malleable cast iron ensures that the mechanical properties meet the minimum malleable cast iron KH 30-6 specified in TOCT 1215-41. Now, each agricultural machine shop producing cupola malleable iron ensures reliable melting of the malleable castings of Kq33-8 and higher poles.