94久久国产乱子伦精品免费,色噜噜一区二区三区,夜夜嗨av一区二区三区,成人av无码一区二区三区,性欧美大战久久久久久久,丁香六月久久婷婷开心,少妇人妻偷人精品免费视频,久久午夜无码鲁丝片午夜精品,日本大骚b视频在线,色欲av永久无码精品无码蜜桃

 Products Information：

Comifo hydraulic fastener replaces fasteners such as screws or rivets.

It is especially used in HVAC engineering, which joins two or more mental sheets together through cold extrusion without rivets which is widely used in the western countries. It features sturdy welded structure, maintenance-free motor, reliable, low-noise fastening. Since two joins per second are created. In a cold forming process the power fastener cuts and forms the connecting element out of the working material.
 
In this process, the upper sheet is tightly and positively connected to the lower sheet. Comifo can make different sizes of die according to customers’ requirements.