| 3. | The above products are widely used in the metallurgy , the chemical industry , freezes , the boiler and the pressure vessel manufacture , the town gas pipeline , the military production , machine manufacture ; coal mine hydraulic pressure prop , car loader and other mechanical fluid compressed steel body ; all kinds of bearing inside and outside ferrule , petroleum casing and oil well drill
上述产品广泛用于冶金化工冷冻锅炉和压力容器制造，城市煤气管道，军工生产，机械制造煤矿液压支柱，装载机和其它机械液压钢体各种规格轴承的内外套圈，石油套管和油井钻杆等。 |
