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• 1pc Nylon Guide Wheels For Sliding Doors High Quality Sliding Door Wheels With Screws Door Guide Rollers Door Roller Accessories Product description   Sliding gate upper instruction manual nylon rollers with bracket is used to regulate the width of the gate frame of 10-70 mm.Fix it with 2 form M12 expansion screws or direct electrical welding.Nylon curler diameter 30mm,length 40mm with M14X68 screw. there are white or black color.Bracket materials is Q235 metal , thickness 5mm and has been electro-galvanized to prevent rust.

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