1. corner connecting rod (used for external connection of profiles with fixed angles, which can be divided into three angles of 90 45135, and can fix the sealing plate. ) It has high bearing capacity and wide application, and is one of the commonly used methods in the assembly of industrial aluminum profile frames.

2. Bolt connection (used to connect two profiles within 90 degrees, which is convenient for installation and disassembly, and is often used for simple profile cover connection, which is more reliable. ) can be used together with corner pieces, and has the advantages of high bearing capacity and firm and convenient assembly, and is the first choice for assembling industrial aluminum profile frames.