Fins are attached to the plates by a mechanical fit, gluing, soldering, brazing, welding, or extrusion.
翅片靠机械配合、粘结、软焊、硬焊、焊接或挤压附着在板上。
2
The continuous extrusion model with welding dies functions well with puller systems and other automated handling equipment.
它可拥有一个连续挤压的模式，因为有柱锭焊接技术，还有牵引系统和其它自动化的挤压配套设备。
3
This article introduces inner compound metal pipe manufacturing technology of the cold forming method, heat extrusion method and centrifugal foundry method as well as welding method.