压力容器是在常温或较高温度下工作的机器或机械结构件，广泛地应用于火车、电站、石油、化工等各部门，历来受到各国的普遍重视。随着国民经济的发展，根据使用的需要我国已建立压力容器、多层压力容器和锅炉钢板等相应标准。由于各国标准体系不同，因此标准结构和内容差... Pressure vessel is a machine or mechanical structure working at normal temperature or higher temperature. It is widely used in trains, power stations, petroleum, chemical industry and other departments and has always been valued by all countries. With the development of the national economy, China has established corresponding standards for pressure vessels, multi-layer pressure vessels and boiler plates according to the needs of the use. Due to the different national standard system, so the standard structure and content is poor ...