Product Advantage :
Small window opening arc plate PVC material, outer frame ABS, side frame PVC, thermal insulation cotton: high thermal insulation EVA, support 1.2mm thick 304 stainless steel, pin shaft and bolt 304 stainless steel material ~ with anti-aging, corrosion resistance, good sealing performance, etc. ~ compared with the supports used by other manufacturers, some are 201, some are 304, with a wall thickness of 0.8mm, and the thermal insulation material is sponge. The price of four sponges on the small window is not as high as that of EVA, The sponge absorbs water, which does not have the effect of heat preservation in winter. After absorbing water, the small window will have a large weight, causing the ceiling to sag.
