What are the different types of aluminum profiles used for railings and fences?

Aluminum profiles for railings and fences come in various types, each designed for specific applications and aesthetic preferences. Common types include: 1) Rectangular profiles, which are versatile for both commercial and residential settings; 2) Square profiles, offering a modern look and are often used in minimalist designs; 3) Round profiles, providing a classic appearance suitable for traditional or vintage styles; 4) Slotted profiles, which allow for easy assembly and are popular for their adjustability; 5) Hollow profiles, known for their strength and lightness, ideal for high-load applications; 6) Angled profiles, used to create corners and intersections in railing and fence designs. Each type can be further customized in terms of size, thickness, and finish to meet specific project requirements.