... Door 1.no frame,no side,middle open 2. no deformation 3.easy folding makes it easy ... each other makes it easy tosell-close quickly, open convenient, solid durability, aesthetics brilliant 1.novel ... side,middle open, no deformation 2. elegant modeling,easy to take, no noise 3.quick auto-closing,convenient ... the magnets and magnetic strips attract symmetrically 2.Fasten the two pieces of screens on ...