在设备修理、管道修理及水暖施工中,有的零件、部件的结合面需要使用石棉橡胶垫进行密封。有的石棉橡腔垫圈可在市面上购买到,有的则需要修理人员自行制作。小的石棉橡胶垫圈,既省料,又省时,好制作;而较大的甚至有近φ1000mm的石棉橡胶圈,像这样大的密封圈,其制作既费料,又难加工。为了省料、 In the equipment repair, pipeline repair and plumbing construction, some parts, the combination of parts need to use asbestos rubber gasket seal. Some asbestos rubber gasket can be purchased in the market, while others need to repair staff to make their own. Small asbestos rubber gaskets, not only saves material, but also save time, good production; the larger even as close as φ1000mm asbestos rubber ring, such a large ring, the production of both material, and difficult to process. In order to save money,