塑钢门窗是继木门窗、钢门窗、铝合金门窗之后迅速崛起的第4代新型门窗。因这种塑钢门窗具有节能、隔音、阻燃、美观、耐腐蚀、使用寿命长等优点,同时又对于保护木材、保护生态环境具有重要意义。所以,塑钢门窗一问世就受到人们的普遍欢迎,展示出了广阔的市场前景。正因如此,一 Plastic steel doors and windows are the fourth generation of new windows and doors that have rapidly emerged after wooden doors and windows, steel doors and windows, and aluminum alloy doors and windows. Due to its advantages of energy saving, sound insulation, flame retardance, aesthetics, corrosion resistance, long service life, etc., this plastic steel door and window has important significance for protecting wood and protecting the ecological environment. Therefore, the appearance of plastic steel doors and windows has been generally welcomed by people, showing a broad market prospects. Because of this, one