目前我国塑料门窗的使用量已达到3000万平方米/年,成为继钢窗、铝合金门窗之后,木质门窗的首选替代品。塑料门窗已进入了全新的发展时期,而与之配套的塑机行业已趋饱和,有待上规模、上水平。伴随我国塑料门窗业发展起来的济南光明机器制造有限公司,10年获得了10余项实用新型专利, At present, the use of plastic doors and windows in China has reached 30 million square meters / year, after the steel window, aluminum alloy doors and windows, wooden doors and windows of the preferred alternative. Plastic doors and windows have entered a new period of development, and the matching presses industry has become saturated, to be on the scale, the upper level. With the development of China’s plastic doors and windows industry, Jinan Guangming Machine Manufacturing Co., Ltd. has obtained more than 10 utility model patents in 10 years.