某高档铝合金门窗研究分析

TD 内容简介The door hinges in all ranges. 　　全方位的门合页 　　The three-part door hinges with large counter-plates resist the strongest stresses placed on them. They prevent weakening over time which would allow the door to sink and eventually scrape the floor. The high-grade steel pins are set in polyamide sleeves which guarantee a long life and ensure stability and mainte..