Subheading 840211: Boilers; Watertube Boilers with a Steam Production Exceeding … etc.
Subheading 840212: Boilers; Watertube Boilers with a Steam Production not Exceed … etc.
Subheading 840219: Boilers; Vapour Generating Boilers, Including Hybrid Boilers … etc.
Subheading 840220: Boilers; Super-heated Water Boilers
Subheading 840290: Boilers; Parts of Steam or other Vapour Generating Boilers