... , colors can be customized PC U profile/PC U clip/PC connector/PC buckle/pc profilepc-u profile is sealing ... dust go inside the sheet.PC U profile/PC U clip/PC connector/PC buckle/pc profileBasic InformationBusiness Type:Manufacturer,Wholesales ... Sheet,Polycarbonate Frosted Sheet,Polycarbonate Diamond Sheet,Awning,Awning Bracket,Greenhouse. Accessories: H&U PC profile,and related accessories. Number ...