具有烟气循环装置的锅炉是涉及锅炉附件结构的改进。
The utility model relates to a boiler with a smoke circulating unit, particularly the improvement of the structure of a boiler accessory.
蝶形弹簧安全阀是锅炉压力容器的重要安全附件，用于防止系统压力超过允许的极限值。
Butterfly spring valves are important safety attachments of boiler pressure vessels, they are used to prevent system pressure from exceeding allowable limit value.
蝶形弹簧安全阀是锅炉压力容器的重要安全附件，用于防止系统压力超过允许的极限值。
Butterfly spring valves are important safety attachments of boiler pressure vessels, they are used to prevent system pressure from exceeding allowable limit value.
应用推荐