Expansion joints in the column joints have core column connection column from top to bottom, usually designed to be movable joints.
伸缩缝处立柱接头有芯柱连接上下柱，通常设计为可活动的接头。
2
The connection between separator, furnace and back-end flue adopts stainless steel nonmetal expansion joint which can bear high temperature.
分离器与炉膛及尾部烟道之间的联接采用耐高温非金属膨胀节。
3
The design and lectotype of circulating pump, automatic return water switch valve, expansion tank and atmospheric connection pipe in atmospheric hot water heating boiler room are discussed.