For pvc sliding window and door,it is possible for storm water resistance.
Check reinforced steel doors and Windows of upvc
Fight wind pressure to pvc bathroom door of model steel door to have different requirement according to national standard, the inner cavity of the frame of window of model steel door, fan needs to assemble strengthen section steel, have different according to height 1.2mm, 1.5mm, 2.0mm 3 kinds of thickness strengthen section steel, in order to ensure the sturdiness of the product and service life.
And some manufacturers in order to reduce costs, do not load or do not meet the requirements of the reinforced steel. Customers should pay special attention when choosing products.
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