| 摘要 |
The components can be moulded in synthetic resin with a pipe head offering a curved path with an initial portion (32A) that commences axially and is deflected to form a final portion (32B) having a certain inclination; said inclined final portion (32B) is very short and forms a seat for an interchangeable nozzle (7) selectable from a series of nozzles having tapering through orifices (76X, 76Y, 76Z) of different inclinations and all connectable to the deflection (32C) of the initial portion (32A).
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