thermal break profiles aluminium folding doors double tempered glazing bifold door on China WDMA on China WDMAthermal break profiles aluminium folding doors double tempered glazing bifold door Product Description Specifications Product Aluminum Bi fold Door Brand ZTMY Place of Origin China Model Number ZT410371 Material Aluminium Frame and Tempered Glass Glass Single or double as requirement Types: tempered glass,coating glass,patterned glass,reflective glass,etc. Color White Black Silver Wood Grain Customize Thickness of profile 1. 4mm Aluminium Frame +5.