Applicable system: Casement door Material: Aluminum alloy Surface treatment:Non-toxic nano coating(shining stone black) Automotive grade four-time baked paint(Knight Grey,Emperor Gold,Amber Silver) Parameters:Square steel length L=fan profile thhickness δ ＋（25--30）mm The length of the M5 screw L1=the thickness of the profile δ +(15--18)mm
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