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 上述產(chǎn)品廣泛用于冶金化工冷凍鍋爐和壓力容器制造,城市煤氣管道,軍工生產(chǎn),機(jī)械制造煤礦液壓支柱,裝載機(jī)和其它機(jī)械液壓鋼體各種規(guī)格軸承的內(nèi)外套圈,石油套管和油井鉆桿等。