石(shi)(shi)棉(mian)布卷(juan)盤根(gen)系(xi)用(yong)(yong)石(shi)(shi)棉(mian)布、石(shi)(shi)棉(mian)線(或(huo)金屬石(shi)(shi)棉(mian)布、線)為(wei)基材(cai),以橡(xiang)膠(jiao)為(wei)粘合劑,卷(juan)制或(huo)編制成(cheng)的方(fang)形密封材(cai)料(liao)。石(shi)(shi)棉(mian)布卷(juan)盤根(gen)適(shi)用(yong)(yong)于壓力為(wei)80kg/cm2,溫(wen)度為(wei)550℃以下的蒸汽機,往(wang)復泵的活塞和閥門桿上作密封材(cai)料(liao)。石(shi)(shi)棉(mian)布卷(juan)盤根(gen)適(shi)用(yong)(yong)于壓力為(wei)80kg/cm2,溫(wen)度為(wei)550℃以下的蒸汽機,往(wang)復泵的活塞和閥門桿上作密封材(cai)料(liao)。