The SF-201 system is distinguished by: Rollers with ball bearings. Lower guide hidden or with lower profile. Permits fixing to ceiling or wall. Vertical adjustment mechanism.

The SF-401 system is distinguished by: Rollers with ball bearings, swinging to overcome the irregularities of the profile. Lower guide hidden or with lower profile. Permits fixing to ceiling or wall. Vertical adjustment mechanism.

The SM-202 system offers: Vertical adjustment of the leaf. Rollers with two ball bearings. Wall or ceiling fixing. Lower guiding system with profile.

The SM-402 system is distinguished by: Vertical adjustment of the leaf. Rollers with four ball bearings, with swinging system to overcome possible irregularities of the profile. Wall or ceiling fixing. Lower guiding system with profile.