| 摘要 |
<p>The enamelled iron exhaust pipe is comprised of a plurality of parts (9a, 9b, 10, 11a, 11b) which are coated with an enamel layer; in the manufacturing process, the different parts of the exhaust pipe are heated at the enamelling temperature, which causes the melting of the contact surfaces of the different parts and hence the welding thereof. </p> |
