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Because of the particularity of its surface treatment, aluminum alloy door and window profiles have strict requirements on product packaging and transportation.

1. Plastic Wheels Lightweight and cost-effective, plastic wheels are often used in lighter doors. They are less durable than metal but can work well for internal sliding doors.

This aluminum grade is an alloy of silicon and magnesium. It offers excellent machinability properties and is usually extruded and cold-worked.