| 摘要 |
<p>Dispensing unit comprising a container (2) and a dispensing member for dispensing a product contained in the container (2). The cylindrical container (2) includes a piston (16) consisting of a body (10) made of a rigid material with a cylindrical portion carrying a seal (17) made of resilient material. The seal is produced by duplicatemoulding the body (10) of the piston (16) of rigid material, the resilient material and the rigid material being chemically compatible in order that the seal (17) is linked to the body (10) of the piston (16), the seal (17) including a semi-toric portion (18).</p> |
