| 摘要 |
The fitting (10) has a removable clamping accessory (13) installed at an end of the fitting according to characteristics of material of a transparent upper part (11). The accessory is made of a material transparent to a laser beam (F) and resistant to a force applied to an upper surface (11a) of the upper part and to a friction generated by a displacement of the accessory on the upper surface of the upper part. The accessory comprises a holding portion associated with the fitting and another application portion applying a preset force against an upper surface of the upper part. The clamping accessory is made of transparent material e.g. glass, quartz and sapphire, plastic material or thermoplastic material. |
