Contact info

We offer you our contact information at hand, so you can coordinate with our team and start working on your projects.

Mon-Thu: 07:00 - 17:00; Fri: 07:00 - 16:00; Sat and Sun: CLOSED 8th street, C-24, down river, Panama Province, Panama City, Republic of Panama +507 60765295 2039025 / 2039019 contacto@grupokefren.com

70 mm perimeter

The 70 mm perimeter series is an exterior aluminum carpentry system for sliding windows and balcony doors. It is a set of high-end sliding profiles that has a perimeter frame and 45 ° cutting blades. Adaptable to any space thanks in large part to the size of the leaves and frames, which are ideal for projects that require large carpentry. This system is compatible with the 45mm series. Practical doors, windows and all the designs related to this type of profiling.


It has a variety of frames, leaves and cross leaves, which allow covering all the sliding options available.

On an aesthetic level, it is available in natural anodized, white lacquered, black anodized, bronze anodized, dark gray textured lacquered and wood lacquered finishes.

Simple carpentry in assembly and design. Brackets for frames and sashes to guarantee a quality finish, good alignment and resistance.

Good thermal behavior and tightness (against water and temperature). Compatible with the 70mm hinged system.

The compatible types of glazing are: monolithic, double and triple. The choice of type depends on each project.

Available finishes


The 70 mm perimeter series is compatible with 6 main types of opening, applicable to sliding windows and balcony doors in any location. The choice of type will depend mainly on the design and characteristics of the project in progress. The types are:

1- Two sheets

The classic type of opening for sliding windows, identical to that available in the 60mm perimeter series. It consists of 2 mobile leaves that allow opening to the left and right. It is important to note that in this type of windows the maximum opening is 50% with respect to the total width available for installation.

2- Three leaves in three lanes

Similar to the previous opening type, but adding 1 extra sheet and s difference from the 60 mm perimeter series, we have one more rail. Ideal for spaces with large available widths. The maximum opening for this case is approximately 66% of the total width available for installation./p>

3- Two sheets + lower or upper fixed glass

In this case, the type of opening is the classic 2-leaf, but with the addition of fixed glass panels located in the upper or lower part of the opening. The choice of this configuration depends on the running project and the established design specifications.

4- Two leaves + side glasses

In this type of opening we have the same case as the previous one, where 2 sheets are used and around the windows we have fixed glass panels on the left, right, up or down if necessary.

5- Four leaves on two lanes

At this point we start with the wide openings. It uses 4 sliding leaves distributed in 2 lanes. In this case, the choice of this configuration goes hand in hand with the maximum width available and the planned design.

6- Six sheets in three lanes

The last type of opening, but not least, uses 6 sliding leaves distributed in 3 lanes. In this case, as in the 4-leaf two-lane version, the choice of this configuration goes hand in hand with the maximum width available and the planned design.


Send us a message in our contact section and we will gladly attend to your orders or any questions you may have. Click on the button below to quote the system you need and receive personalized advice to carry out your project.

Remember to follow us on our profiles on Facebook and Instagram, so that you are up to date with our most recent projects and products.