1、 Look at the quality of the shutter piece is an important part. When purchasing louvers, first touch whether the louvers are smooth and uniform to see if each blade will have burrs. Generally speaking, the shutter with good quality has a better treatment on the details of the shutter, especially the shutter made of plastic, wood and bamboo, and the shutter with good texture will have a longer service life.
2、 There are two ways to measure the size of the shutter: concealed installation and open installation. When purchasing, the size of the shutter shall be measured according to different assembly methods. The length of the blind concealed in the window lattice shall be the same as the height of the window, but the width shall be 1 ~ 2 cm smaller than the left and right of the window. If the shutter is hung outside the window, its length shall be about 10cm longer than the height of the window and its width shall be about 5cm wider than both sides of the window to ensure good shading effect.
3、 Check the adjusting rod. The adjusting rod is also a key part of the shutter. The adjusting rod of the shutter has two functions: one is to adjust the lifting switch of the shutter, and the other is to adjust the angle of the blade. When checking the adjusting rod, first hang the shutter flat and try to pull it to see whether the lifting switch is smooth, and then turn the adjusting rod to see whether the turning of the blade is also flexible.