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flush door 1, using thick aluminum alloy material, damp proof, non-deformed 2, using double-glass empty design, good sound insulation, good fire-proof 3,total aluminum ,double-hollow glazing, various colors 4, professional manufacturer with 20 years experience 5 ,tempered double-glazing available 6 ,installed an aluminum bar inside the glass , make it damp-proof and dust-proof, usingpressure-sensitive adhesive ,make it without leakage of water. 7,With three stainless steel hinges , it can bear the weight of the door leaf , more durable , and never go rust