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白鐵皮螺旋風(fēng)管變徑大小頭批發(fā)廠家
螺旋風(fēng)管是用鍍鋅白鐵材質(zhì)而制成的又叫鍍鋅螺旋風(fēng)管，螺旋風(fēng)管主要用于通風(fēng)、空調(diào)、凈化、除塵、物料輸送及混凝土現(xiàn)澆件的透空管 		2023-05-15
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