• Bottom-track-free realize no-barrier access
• Mechanical design for solid structure and long service life
• Equipressure stucture realizes high water tightness
• Endurable and tough EPDM seal strip ensures extraordinary air tightness
• Derail-prevent track
• E-coat top rail ensure sooth operation & durability
• 2 rails, 3 rails OR insect screen with 3 rails available
• Wide range of color for option